Rapper's Dental Visit

Ayo, listen up, dummy! This joke is all about wordplay, see? Rappers care about their "flow," which means how good their rhymes and rhythm are. But "flow" also means, like, what the dentist fixes when your mouth is messed up. It's funny 'cause it uses the same word for two different things, and you ain't smart enough to figure it out yourself, ya dingus.