pee in her butt Share definition Flag A term used between men to state they would like to have sex with a girl if they could. Buck: "Look at the nice round ass on that skank." Big Papi: "Oh yeah! I'd pee in her butt." pee in her butt by Big Papi November 7, 2006 0 0 Get merch Get the pee in her butt mug. Buy Now — $32.95 See more merch