A
punch bunny is a really hot girl who doesn't have a
boyfriend: the reason why is because she is so stupid you can really only do one thing with her, punch it - and leave it.
IE - a playboy bunny.
Friend: "Who was that girl you took
home the other night, that
blonde with the huge tits and great turd
cutter?"
Answer:"I have no idea. Sex was great, but then she started talking. Another dumb punch bunny."