P in da Butt Share definition Flag To insert your penis into a womans anal cavity. In other words, To Fuck a Bitch in the Ass. I was knockin it down with Shoniqua last night, dawg. Did she let you P in da Butt? You know it. P in da Butt by To- dawg October 3, 2006 0 0 Get merch Get the P in da Butt mug. Buy Now — $32.95 See more merch