ha-bunk-a-dunk
Generally in referance to "booty."  Meaning to have a big ol' chunky, I need to be in a ludacris video and shake it, slab of meat on your backside.  Though, as it is often said in the context of "clowning," the word can be iether positive or negative.
Dawwwwmmmm! Look at that ha-bunk-a-dunk booty.  She look like missy elliot after eating a chubby midget.