Is when you put jelly and peanut butter in someone's asshole and you insert your penis into there asshole
I want to pb&j his asshole (peanut butter and jelly asshole sand which)
by Prison man June 13, 2014
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The most heinous sexual act. So terrible that your friends can never speak to the girl you gave it to ever again. In addition, they are not allowed to be friends with you for a month. At the end of that month you'll still think it was worth it.
Where's Jim been?
I don't know, I can't be friends with him until August since he gave Jane a triple decker peanut butter and jelly sandwich.
Oh my god! That's awful.
by Joe from Cocamo June 28, 2008
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A sandwich comprised of Penis Butter (Sperm, Semen, Ejaculate, Cum, Baby Gravy, Baby Batter, Horny Muffins, Knob Slime, Peace Grease, Dick Goo, Ectoplasm of The Nether, Spoofs...etc.) and the popular personal lubricant K.Y. Jelly. Often said as a joke or sang in substitution of the old "Peanut Butter and Jelly " song features on the 90's popular kids TV show Barney the Dinosaur.

Example of a joke with a friend if they don't like something.: (See Example Below)

Other example: look up Barney Peanut butter and Jelly and change the words, you will see where the idea came from.
"Wow, why don't you just go and eat a Penis Butter and K.Y. Jelly Sandwich!?"
by IronFistAlchemist June 18, 2018
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A super sloppy blowjob when a girl licks underneath your balls and you blow in her mouth.
The girl said she likes to give head so I served her up a nice nut butter and jimmy jelly sandwich...needless to say she gobbled it up!
by enonemouswon117 June 5, 2007
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when you take a jar of Goober and spread it between a girl's butt cheeks then eat it out
Last night I was with this chick that had me eat her ass after spreading Goober between her cheeks. I've been craving Peanut Butter Booty and Jelly (PBB&J) all day now.
by that-guy177 January 7, 2022
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When one person puts peanut butter on one side of another's ass cheek and jelly on the other cheek then proceeds to motorboat the pb and j.
can I peanut butter jelly your ass tonight?
by PhoenixFranchise August 16, 2023
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FF-in Nut-ter
Blud, Lowe this Jelly Butters Sh*t
by WheatenFields#1 July 26, 2010
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