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”

Upperdecker Double Blumpkin by Stephen Roche September 21, 2019

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.

Upperdecker double blumpkin deluxe by JScrub619 July 4, 2016

Upper Decker Double Blumpkin 

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.

Upper Decker Double Blumpkin by Dante Rau July 20, 2006

Upper Decker Double Blumpkin 

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

Upper Decker Double Blumpkin by Roger Podacter September 19, 2010

kentucky upper decker double blumpkin 

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.

kentucky upper decker double blumpkin by tootalljen89 November 22, 2011

Upper Decker Double Blumpkin 

The very intimate act in which the male lover delicately removes the top cover on the porcelain tank of a toilet. Next he will mount the the tank and begin to defecate. Now the female lover gently sits on the toilet seat facing her male partner. The act begins when she also compenses to defecate while orally accepting his genitalia.

I knew she was the ONE when she pulled me into the hotel bathroom and introduced me the amazing upper decker double blumpkin.

Upper Decker Double Blumpkin by INFDOC September 9, 2021

Upper Decker Double Blumpkin' 

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?'

Upper Decker Double Blumpkin' by mrButters April 23, 2009