F.Y.S.

(Fuck Yo' Shit) Perfectly accepted phrase to tell someone that doesn't satisfy your needs.

Manny: yo' son this bitch did give me some pussy tonight!
Carlos: so what did you tell her?
Manny: i told that bitch, F.Y.S.!

-or-

Freaky: Two for five purple tops
Weezy: How about three for three?
Freaky: NIGGA F.Y.S. IM THE BEST RAPPER ALIVE!!!
Weezy: I CANT FEEL MY FACE!!!!