peanut butter cum 

cum that you have mixed shit and/or peanut butter with.

Guy 1 : Hey! Wanna come and make some peanut butter cum?

Guy 2 : Sure! Let's go!

peanut butter cum by Infected(DoesThings) January 31, 2021

Peanut ButterCup 

When a white girl and a person of color(or the other way around) have anal intercourse.

Comes from the Reese's Peanut Buttercup commercials. "Your chocolate is in my peanut butter. No your peanut butter is in my chocolate."

I was hooking up with Angela when she asked me if I wanted to Peanut Buttercup.

Peanut ButterCup by Phillip Pino August 4, 2010

The Reese's peanut buttercup method 

The Reese's peanut buttercup is the act of trying to go to third base while your parents are home. In order to do this, you must reach into the girls pants and try to finger her while she lies on top of you with both your clothes are still on. This follows after hooking up and boys desire to go farther. The results may vary but it still contains enormous amounts of awkwardness. However, this method can be very useful because you can brag to your friends about going to third when, in fact, u haven't gone past 2nd.

Girl: wanna hook up?
Guy: nah lets go to 3rd this time.
Girl: No!
Guy: fine how about The Reese's Peanut Buttercup method?
Girl: Perfect

The Reese's peanut buttercup method by The Red Pillow May 13, 2012