Booty Share definition Flag Booty 1. A fine big round ass ~ usually with a nice small waist 2. Cheap; unfair 1. Damn nigga look at that fine azz booty! 2. Thats mad booty son. Booty by Killa D August 3, 2006 0 0 Get merch Get the Booty mug. Buy Now — $32.95 See more merch