Hillbilly Toothpaste Share definition Flag Peppermint Schnapps. Hillbillies can't brush what's left of their teeth so a quick rinse with the peppermint schnapps does the trick. Cletus got ready for his date by drinking 3 shots of Hillbilly Toothpaste. Hillbilly Toothpaste by JMCComedy November 23, 2020 Get the Hillbilly Toothpaste mug.