I.W.Y.T.F.M.S.H.I.C.W.A
This abbreviation means "I Want You To Fuck Me So Hard I Can't Walk Anymore"
Example
Boy 1: Hey Jess, if you're a freak, then you know what I.W.Y.T.F.M.S.H.I.C.W.A
Jess: Yeah, I know what it means. I'm not that innocent. "I Want You To Fuck Me So Hard I Can't Walk Anymore"
Boy 1: Hey Jess, if you're a freak, then you know what I.W.Y.T.F.M.S.H.I.C.W.A
Jess: Yeah, I know what it means. I'm not that innocent. "I Want You To Fuck Me So Hard I Can't Walk Anymore"