fatty bum teeth Share definition Flag Someone who is considered to have their head so far in their fat rolls that they find teeth. Cooper: "You know that kid James?" Pat: "Yeah, he's a fatty bum teeth ass bitch."' fatty bum teeth by BinLadiniTheGenie April 10, 2023 0 0 Get merch Get the fatty bum teeth mug. Buy Now — $32.95 See more merch