Upperdecker Double Blumpkin

A man takes the upper-back of the toilet off and sits on it. A woman gives him a blowjob as he takes a crap in the back of the toilet. After crapping and the blow job is done, he puts the lid back on the toilet.

An unsuspecting person comes in later and uses the toilette. When they flush the toilet it fills with brown water from the crap the man took in the upper deck.

“I was over Al’s house and I upperdecker double blumpkin’d his toilet. That thing was flowing brown all day”

by Stephen Roche September 21, 2019

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upperdecker

When you shit in someone’s toilet tank. To pull one at a lame party, first eat everything there that doesn’t agree with you. Then go into the bathroom, remove the lid from the toilet, squat over the tank, and release the explosive diarrhea that has surely built up by now. When you are finished, the water in the tank should be brown, and have dozens of lumps of shit in it. Then wipe your ass, putting the used toilet paper in the tank, replace the lid, and leave the party, or stick around to watch the fireworks.

This party is dumb, i’m gonna drop a mad upperdecker on this place.

by curlypoo December 24, 2020

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reverse upperdecker blumpkin

Recieving a blumpkin while taking an upperdecker with the person performing the blumpkin turned around backwards on the toilet sucking you off and simulaneously taking a shit.

That was some fucked up shit last night, I can't believe your mom gave me a reverse upperdecker blumpkin.

by don von donnie March 17, 2008

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Upperdecker double blumpkin deluxe

One person sits on the toilet while the other person stands above him. The person sitting is giving a blowjob to the standing person while both are taking a shit.

I walked in the public restroom and caught my roommate and some stranger doing the upperdecker double blumpkin deluxe.

by JScrub619 July 4, 2016

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