ISTG stands for “ I swear to God ” in texts and on social media apps. 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). One of the hottest internet acronyms among today's teenagers is ISTG. Here's what this versatile slang term means and how you can use it in your messages and social media posts. ISTG is short for " I swear to God ." It can express that you're being serious and truthful, or that you have strong feelings---typicaly either excitement or frustration. ISTG stands for "I Swear To God" and is used to emphasize sincerity or seriousness in online chats and text messages. Learn how and when to use it, see examples in conversation, and find synonyms and alternatives. Discover what does istg mean- the meaning of ISTG “isI Swear to God.” Learn how to use this popular internet slang in texting and social media, with smslocal
