chickenbutt Share definition Flag Chickenbutt: The butt of a chicken or, a word used to make stupid children laugh. Hey there little kid...guess what?.... Chickenbutt!! HA ha HA ha HA ha ha etc.. chickenbutt by Chaddfucious July 15, 2003 0 0 Get merch Get the chickenbutt mug. Buy Now — $32.95 See more merch