Eggbutt Share definition Flag Someone who inserts eggs into their rectum and lays them for fun. Peggy: Have you seen that video of Eggbutt putting an egg in his butt?Fraser: Yeah bro, sweet as. Eggbutt by Cumface2.0 September 30, 2018 0 0 Get merch Get the Eggbutt mug. Buy Now — $32.95 See more merch