residual booty Share definition Flag A hook-up session or sexual encounter attained solely based on one's association with another person or party. Man, I sure wish we were friends with Tom Brady - imagine the amount of residual booty we'd snag? residual booty by T-Styles October 28, 2008 0 0 Get merch Get the residual booty mug. Buy Now — $32.95 See more merch