What is Iasfs?
An acronym for "I Am So F-ing Sorry", a sarcastic apology, typically issued in a chat room, forum, or text message communication.
AirEck: Hey guys, check out this funny YouTube video (link).
Deepek: Repost, loser!
AirEck: IASFS, Deepek
See i, am, so, f-ing, sorry