when a guy ejaculates into a jar of peanut butter, then stirs the concoction around with his penis. then he proceeds to deliver said jar to a dairy queen where it is used to make a blizzard.
"hey eric how was your reese peanut butter cup pie?"
by triger9501950 July 22, 2014
mugGet the reese peanut butter cup piemug.

reese peanut butter cup

When someone smears peanut-butter on someone's butt crack, preform anal sex and then have the other person suck there penis.
wow some chick totally reese peanut butter cuped me yesterday!!!
by Alec :) October 14, 2008
mugGet the reese peanut butter cupmug.

Share this definition