Buttagirl Share definition Flag A buttagirl is an African American woman who weighs over 250lbs and is sexually promiscuous. "Them buttagirls is dirty hoes!" "Yeah, but that buttagirl right there, she always comes correct" Buttagirl by Richypoo87 March 26, 2010 0 0 Get merch Get the Buttagirl mug. Buy Now — $32.95 See more merch