Someone who is always the
butt of the
joke; usually among a well-intentioned group of friends but sometimes passive aggressively aimed at a member of a group that isn't well liked.
Modern use related to older concepts such as
scapegoat or whipping boy.
"
Dude, why are y'all so harsh on Trey all the time?"
"Nah, man. We're all joking. He's just the
cheese bitch."
"Ugh, is Dillon gonna be there again? Fuck that
cheese bitch, you'd think he'd get the message."