The act of sitting on the top part of a toilet and shitting while getting head by the girl who is strattling towards you on the bottom seat while also taking a dump at the same time.
The raunchiest act of the famous "blumpkin" to the next extreme calling it the Upper Decker Double Blumpkin.
by Dante Rau July 20, 2006
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When a man is taking a dump in the tank of a toilet while a female is sitting on the bowl taking a dump while facing him and performing oral sex on him.
Yo I was taking a shit and Tracy want to give me a blumpkin but she also had to take a shit so we did an Upper Decker Double Blumpkin
by Roger Podacter September 19, 2010
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An event when two couples receive phalacio while defecating in the bowl and in the tank.
"Yo Dawg, did you hear Shaniqua was in a Upper Decker Double Blumpkin' last night?'
by mrButters April 22, 2009
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When a man is taking a shit in the toilet tank while a female is sitting on the bowl reverse cowgirl taking a shit and sucking his dick then once they are finished they preform a reverse 69 licking each others assholes clean.
Dude last night i got a kentucky upper decker double blumpkin, and my ass has never been cleaner.
by tootalljen89 June 03, 2011
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The act of, in this very exact particular order: finding a sexual partner and take them to eat a substantial amount of Taco Bell with you. When you both inevitably need to take a diarrhea shit, do it at the same time, with the submissive sitting on the bowl and the dominant sitting on the opened top tank. During the shit, the submissive will perform oral sex on the dominant. When the dominant finishes on the submissive’s face, they must punch the submissive in the nose to create a mixed fluid of blood and ejaculate on their face. Once both parties complete their shit. They will perform a reverse sixty nine on each other until both anuses are clean. Then the dominant must lick the submissive’s face clean.
Man 1: hey bro, why did you break up with your girlfriend? She seemed really nice.
Man 2: nah bro, she was so selfish, she wouldn’t even do a kentucky jelly doighnut upper decker double blumpkin supreme with me!
Man 1: oh man, I didn’t know that, what a selfish bitch!
by Dr. Heinz Doof August 29, 2021
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It's the act of the man taking a dump in the tank of the toilet while the woman takes a dump in the bowl while giving the man a blowjob while a third party performs a golden shower.
Dude, last night Stacey and Dave and I did the upper decker double deluxe Blumpkin, it was gnarly!
by Reedski March 21, 2015
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The unspoken act of a female performing an upper decker, whilst a male counterpart carries out a defecation in the lower (relative to aforementioned upper deck) deck, whilst eating out the aforementioned female.
Gary and Bruce were both really excited to partake in the sensual act of a Double Upper Decker Double Reverse Blumpkin, but neither one had eaten a large enough meal to carry out the act.
by doubleupperdeckerdoublereverse October 13, 2019
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