chick: did you hear the us is cancelling the Constellation space program?
dude: WTFITB!
chick: that's what I said.

phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz

When you're hangin out with your usual circle of friends and all of a sudden a new chick joins your crew and starts talking to you like she knows you and you look over to ur BFF, confused, and whisper 'ummm, who the fuck is that bitch?' Or 'WTFITB'