Similar to an ordinary blumpkin but in this case the girl A.C. Slater's the toilet and blows the guy as he upper decks the toilet.
Chad and his girlfriend had to shit at the same time, so to kill two birds with one stone she gave him a double blumpkin in her parents bathroom.
by D-Zell June 23, 2011
When you and a friend achieve the amazing feat of reciving simultaneous blumpkins in a public bathroom.
Guess what happened to me and earl last weekend, we met up with some skanks and got a double blumpkin.
by the duke of all dukes September 26, 2008
by Space Dock April 01, 2010
While receiving a blumpkin, instead of using the toilet to release your shitty load, you use a female or male's mouth. While the other female or male covers the blowjob portion.
by Bigolfattiedoubleblumpkin January 02, 2009
by D-Bone February 23, 2005
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.
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
The sexual act of sitting on the toilet backwards placing a computer on the tank lid while shitting and masturbating to the person whom you are skyping with.
by Los Muerto Diablos December 31, 2012