Top definition
when a girl you like sleeps with another guy in your bed.
boy-"hey, i like you."

girl-"hey, ima sleep with some guy in your bed tonight."

boys friend-"wow, ultimate diss."

Next Night

boy-"i forgot to change my sheets."
by gotdissed2011 September 16, 2011
Get the mug
Get a Ultimate Diss mug for your cousin Beatrix.