Butt. Otherwise known as fanny, buns, tail, tush, ass, donk, moneymaker, etc. They come in many different shapes, sizes, and colors. Large, round booty is a global favorite. As the great Sir Mix-A-Lot once said, "I like big butts and I can not lie. You other brothers can't deny. That when a girl walks in with an itty bitty waist and a round thing in your face... you get sprung."
Some even name their so called "booty" Such names might include "placenta", "white chocolate", or "Shaniqua".