A big ass most often found on black gurls. mexican and asian gurls have a behind( a butt that is compleatly flat) white gurls have a butt it has some shape but no definition or roundness a booty is what black gurls and some perto ricans have its big round and has shape and definition the kind of butt u can grab up in your hands and squeeze
beyonce has one bootylicious booty.
wit ya traffic jam booty heads pausing so fast. -ludacris