Yo Mama's Yellow Teeth

Alright, listen up, butterfingers! This joke is about your momma's chompers being so dingy they look like butter. You know, 'I Can't Believe It's Not Butter!'? It's a joke about how nasty your mom's teeth are. Bet you didn't know teeth are supposed to be pearly white, not margarine yellow. It's probably because you eat a lot of junk, like that mom of yours.