Use Cases & Examples. ILYSM means "I Love You So Much. ISTG Meaning. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. A. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. What does ISTG mean in the text? Ans. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. This initialism should be avoided in professional situations or in conversing with someone who is religious. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. The Meaning of ISTG in Text. This phrase should only be used in casual conversation. STFU is an acronym that means "shut the fuck up. The “baby” part of the phrase isn’t a literal reference to a child, and. ”. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. ISTG Meaning. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. ’. Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. ISTG is an acronym used in texting, which stands for “I swear to God. ”. ISTG Meaning= Threat3. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. ETA meaning: estimated time of arrival. ISTFG, I can’t believe she actually said that to me. ILYSM can be used to express profound affection. Usually, students or the young generation use this acronym. ” Kids often use this to express frustration or exasperation. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. The abbreviation “ISTG” is a shorthand. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. Page ContentsWhat Is ISTG Meaning1. ISTG Meaning= Honesty or Certainty2. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. STFG stands for Super Teacher Friends Group. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. Testify. ETA meaning: estimated time of arrival. Well, fret not – I’m here to help unravel the mystery for you. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). ISTG is simply an acronym that means I swear to God. new search. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. This initialism should be avoided in professional situations or in conversing with someone who is religious. 1 definitions of ISTG. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. ” This abbreviation is commonly used in informal conversations on various digital. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. It may sound like a new term to some, but this one is very familiar to social media users. ”. Jamie Grill / Getty. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. I swear to fucking god. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. It can be used to convey sincerity, make promises, express annoyance, and more. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. The phrase was later. suggest new definition. ISTG Unveiled: Introduction to the Slang. Meaning. What Does Istg Mean? The acronym ISTG stands for “I swear to God. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. It is often used in informal conversations, especially when expressing frustration or disbelief. I’m beyond shocked. Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. I Swear to God. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. The ISTG acronym is commonly used in response to a person who doubts something that you said. suggest new definition. ”. Specifically, as internet usage is increasing daily,. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. In summary, ISTG is an acronym widely used in informal online communication. One such popular slang on platforms like Snapchat is ‘ISTG’. This initialism should be avoided in professional situations or in conversing with someone who is religious. OTP meaning: one true pairing (a couple that fans prefer to all other. LFG meaning: let's freaking go. GTFO can be used to express disbelief or displeasure. It is typically used to show appreciation of an act of kindness by a loved one. The acronym ISTG is commonly used in text. ISTG stands for I Swear To God. " “ISTG” meaning over text message. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. ”. OFC meaning: of course. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. ISTG is an acronym that is short for “I swear to God”. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. What does Istg mean in text message . One of the main uses of ISTG is in text messages or chats, either between friends or in a. ISTG stands for “I swear to God. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. 2. . ISTG stands for "I Swear to God. They prefer to work in traditional organisational environments, with people who take their. Pinky promise. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. It can be used to express emotions, surprise, or sudden kind of feelings. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. STG means different things to different people but its most common meaning is ‘Swear To God’. It can often. In conclusion, “ISTG” is an acronym that stands for “I swear to God. One of the known acronyms is “ISTG” or “istg”. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. It's a close relative of the OMG (Oh My God). ISTG is simply an acronym that means I swear to God. It represents an empathetic or mildly shocked response to unexpected news or events. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Sub the Gamer security threat group. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. They are there for each other on the good days and the bad days. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. This is also very similar to. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. ISTG means I swear to God. Some of these words and acronyms are used on other video games and social media platforms too. "I swear to. In texting lingo, “istg” simply stands for “I Swear To God”. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. ISTG is often used in informal conversations, texting, and on social media platforms. '. ISTG. This abbreviation is typically used to express surprise, confusion, disbelief, or. STG: You can swear to god when you are frustrated or in exacerbation. It's used express emotional sincerity or to seem intimidating. Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. ”. This expression is most likely something you've heard in ordinary conversation. This. ISTG can be used in various contexts and can have different implications depending on the conversation. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. . ”. Chronic Obstructive Pulmonary Disease D. This phrase is often used on social media while making public posts or in private chats. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. Today, I'll walk you through what ISTG means in text. It stands for “I swear to God. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. Avoid using this abbreviation in business or professional settings because it is so casual. " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. Essentially, ISTG is a shortcut way of saying "I. ISTG is an acronym that stands for ‘I Swear To God. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTFG. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. 3. TLDR meaning: too long; didn't read. Here's what "ISTG" means and how you can use it in your next text exchange. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. The term comes from “shipping” within fandom culture. new search. It’s also like STG. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. IMO meaning: in my opinion. ISTG stands for: I Swear To God. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. This is a common acronym that is used online, typically in text-based communication. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ISTFG. ABC – This doesn’t stand for anything. ATP meaning: answer the phone. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. It could be used to show how excited they are or to express. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. Simply put, “ISTG” stands for “ I swear to God . What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. Get all the news you need in your inbox each morning. Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. I Swear to God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ISTG Meaning. ISTG is an acronym used for “I Swear To God. Like, "ISTG, if I get one more. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. Complaint Of Patient Data C. IYKYK meaning: if you know, you know. Definition of ISTG in Slang/Internet Slang. This initialism should be avoided in professional situations or in conversing with someone who is religious. ”. ”. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. "I swear to. What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. Throughout the years, a variety of terms have arisen which make it easier to communicate online. It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. You might learn your child is using this slang term by chance when a text pops up on the phone screen. Swear to fucking god. It's not typically used in a religious context. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. "I swear to. When used in text conversations, ISTG retains its original meaning of “I swear to God. TLDR meaning: too long; didn't read. Here’s our round-up of the latest Roblox slang. In a different context, “sw” can also mean “someone who. 4. ”. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. It’s a widely used acronym in text messaging and online chatting on social networking sites. Person1: I'm so exhausted. It is commonly used as an exclamation or interjection. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that. It can be used to express emotions, surprise, or sudden kind of feelings. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. Here's what this versatile slang term means and how you can use it in your messages and social media posts. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. However, as with many other abbreviations meaning "I love you," it should not. 查看翻译. ISTG and OMG can also be used interchangeably often. ISTG Meaning= Threat Use Cases & Examples. This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. It can be used as an exclamation, where users are expressing disbelief or shock. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. ISTG is an acronym that stands for “I Swear To God”. Start the day smarter. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. ISTG Meaning= ThreatUse Cases & Examples. ISTG Meaning= Expression of Disbelief4. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. Overall, the acronym STG stands for “swear to God. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. Promise. ”. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. ISTG. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. When someone uses ISTG, they are essentially emphasizing. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. Start the day smarter. TikTok lingo is hard to keep up with. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. Prison gang. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. It’s similar to the term ‘ONG. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. OFC meaning: of course. I swear to fucking god. It can be a powerful tool for self-motivation and encouragement. What Does ISTG Mean? Introduction. ISTG is an acronym that means I swear to God. Every TikTok user's FYP. "I swear to. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. Today, I'll walk you through what ISTG means in text and other text. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. Abbreviation of I Swear To Mother Fucking God. I swear to God. In summary, ISTG is an acronym widely used in informal online communication. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. FOMO meaning: the fear of missing out. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. It is a stronger version of the phrase “I swear”. As in, I swear that actually happened. ”. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. Use Cases & Examples. Clear Of Patient Diagnosis B. It is an expression used to emphasize the truthfulness or sincerity of a statement. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. It could be used to define the frustration or annoyance you might have towards something or somebody. 2. This phrase is typically employed to express surprise, disbelief or concern over a given situation. The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. The media could not be loaded, either because the server or network failed or because the format is not supported. This phrase is used to emphasize the truth of a statement or assertion. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. It can be written in both lowercase “istg” and capital “ISTG” letters. ”. By swearing to God, you make a sacred oath that most people respect more and therefore, are more. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. It is commonly. For example, they might say “ISTG this homework sucks. It is used to express frustration, anger, or disbelief. ” Definition: Istfg is an acronym for “I swear to f Up. ISTG is short for "I swear to God. HMU meaning: hit. A very dramatic phrase to be used only in exceptional circumstances. Usually used after saying something ‘cool’. This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. 1 definitions of ISTG. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. FYP means For You Page. ISTFG. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. IYKYK meaning: if you know, you know. ” Origin of ISTG. What does istg mean in text. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. For example, three sample text messages using the abbreviation ISTFG could be: 1. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. This expression is used to emphasize the truthfulness or seriousness of a statement. Having a parental control app on your child’s phone will give you. It can also be an expression of surprise or. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. This is only for close friends. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. This is also very similar to. It’s also like STG. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. " ISTG is used to add emphasis to a statement (usually a promise, threat,. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Specifically, as internet usage is increasing daily, people. Meaning. It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. How Is ISTG Used? Use Cases & Examples. Usually, students or the young generation use this acronym. This is a group of teachers that are more than friends. Origin of ISTG. ISTG has multiple definitions that can be used in various settings. The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. Since this is a very casual acronym, avoid using it in. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. Definition of ISTG in Slang/Internet Slang. 2006)Texting with friends is the best way to use this term. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. B) used to be the symbol of a person wearing sunglasses with a smile on his face. HMU meaning: hit me up. Get all the news you need in your inbox each morning. Simply put,. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). Guarantee. ISTFG. ” Origin of ISTG. What does ISTG mean? ISTG means “I Swear To God”. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. ISTG stands for “I swear to God” in texts and on social media apps. Here’s what this multifaceted slang term means and how you may.