Fat Ass Forehead Share definition Flag A fat ass forehead is a forehead so ginormous that one can compare it to your mom’s fat ass. “Aye, you bloody cunt, you got a fat ass forehead. Fucking squiggly diggly wiggly looking headass” Fat Ass Forehead by Lil B, Professional Based God July 15, 2021 0 0 Get merch Get the Fat Ass Forehead mug. Buy Now — $32.95 See more merch