What does Istg mean in slang?
I swear to God
ISTG is an acronym that means I swear to God. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context.
What does MF mean?
MF can stand for many things: mutual friends, Millennium Falcon, mezzo forte, mad flow, and medium frequency, to name a few.
