Double Upper Blumpkin 

A slight twist on the original blumpkin.

The double upper involves a male taking an upper decker while a female is taking a dump in the main bowl of the toilet while facing backwards. While all this is happening she is blowing him.

My buddy and his girl would have a few drinks after a night of eating hot wings. When they got home they were both so horny and had to shit so bad that it would inevitably turn into a double upper blumpkin.

Double Upper Blumpkin by Captain_Jigly February 26, 2011

double blumpkin upper decker dactyl tower

Sexual act requiring 4 people. Person 1 sits backwards on the toilet while defecating and gives a blowjob to person 2, who is defecating in the tank of the toilet. Person 1 also gives hand jobs to persons 3 and 4, who are standing on either side of the toilet. Person 2, 3, and 4 high five above person 1's head.

The combination of the double blumpkin supreme, the upper decker, the pterodactyl, and the eiffel tower

Tom: Dude, I saw the nastiest thing, this chick was doing the "double blumpkin upper decker dactyl tower" at that party on Saturday night.
Ted: Wow she must be a freak!
Tom: Yeah, I almost puked!

double blumpkin upper decker dactyl tower by noey November 29, 2013

Double Upper Decker Double Reverse Blumpkin 

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.

Double Upper Decker Double Reverse Blumpkin by doubleupperdeckerdoublereverse October 13, 2019

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