What does ISTG stand for?
What does ISTG mean? We have 1 definitions. Read most used ISTG meanings below.
What does ISTG mean? We have 1 definitions. Read most used ISTG meanings below.
ISTG means "I swear to God." Used to express extreme exasperation or annoyance at what someone is saying.
— You haven't even been to their concert and I have!
— ISTG you're so annoying!