An ass that's so fat it's got crazy cellulite on it, much like cottage cheese.
"That girl over there got a badunkafunk!"
by 281 May 26, 2004
A state of sadness caused by the realization that your ass is too big to fit into any of your jeans.
Amanda isn't coming out tonight because she's in a badunkafunk and has nothing to wear.
by Phillygirl825 November 15, 2007