Booty Flaps
Booty Flaps in another word for ass or but cheeks. This is when a women has very round and perfectly shaped but cheeks. You can have small or large booty flaps but, to be a booty flap they must be of the highest quality of asses.
Yo Tom that chick at the bar last night had really nice booty flaps.
Booty flap
Booty flap is when a girl flaps there booty so hard that whoever watches it, gets a little funky when they watch it.
The girl did a booty flap to the audience in Las Vegas.