Butt slut Share definition Flag A female that really likes anal sex. A man's favorite form of birth control. I told her I'm not interested in being anyone's daddy. Good thing she's a butt slut or I would have broken up with her by now. Butt slut by King George 90210 April 22, 2024 0 0 Get merch Get the Butt slut mug. Buy Now — $32.95 See more merch