Woeiwwy

An acronym for:
What on earth is wrong with you?!

You can also use
WTSIWWY?! Meaning 'WHAT THE SHIT IS WRONG WITH YOU?!'

Person 1: I just attacked someone on twitter for saying dream cheated
Person 2: Did you like send them death threats or something?
Person 1: Exactly!
Person 2: WOEIWWY?!