When someone smears peanut-butter on someone's butt crack, preform anal sex and then have the other person suck there penis.
by Alec :) October 14, 2008
Get the reese peanut butter cup mug.When a man's fucking a girl in the ass and she shits on his dick. At the time he pulls out she puts peanut butter in her mouth and sucks his dick aka peanut butter cup!
Steven: "I got Tiffany to do the peanut butter cup last night."
Lee: "that's gross but you're legendary"
Steven: "her mouth was filled with peanut butter and " chocolate ".
Lee" Peanut butter cup!"
Lee: "that's gross but you're legendary"
Steven: "her mouth was filled with peanut butter and " chocolate ".
Lee" Peanut butter cup!"
by Butt Truffle. October 27, 2017
Get the Peanut Butter Cup! mug.when you slap your dick onto a melted reeces peanut butter cup to cover your dick in peanut butter and chocolate
by Guacomole Wigga Penis November 11, 2019
Get the Peanut butter cup cock mug.