Double reverse blumpkin 

When a person is upper decking a toilet and another person is shitting backwards on said toilet giving oral sex to the person doing the upper decking.

The only reason I like house parties is pulling the old double reverse blumpkin before I leave.

Double reverse blumpkin by Coltnasty August 19, 2021

Double Reverse Blumpkin 

The act where the woman is taking a shit on the edge of the toilet while the man, or another woman, is eating her out. An easier, but messier variation is where the woman shits on the man while he eats her out.

This is not to be confused with a Blumpkin, or a Reverse Blumpkin, which are two different, but closely related things.

The woman was tired of giving her husband blumpkins all the time, so she forced him into a Double Reverse Blumpkin.

Double Reverse Blumpkin by KinkyMaster September 12, 2017

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

upside down double reverse blumpkin supreme 

This is when a girl is giving you dome whilst doing an upper decker in your parents bathroom while they are asleep.

Yo cindy gave me a upside down double reverse blumpkin supreme in my parnets bathroom while they were asleep

upside down double reverse blumpkin supreme by ROBE to the RT December 21, 2005

upside down double reverse blumpkin supreme 

When a group of older, cooler guys, ejaculate on a younger, nerdier guy before taking his socks off and wiping their dicks with them.

"Me, Arzen and Duate totally gave Rob a upside down double reverse blumpkin supreme last night in C&G"

upside down double reverse blumpkin supreme by NoodleBoy July 30, 2008

double decker reverse pumpkin blumpkin 

To sit on the top of the toilet and take a dump in it, while a girl is sitting backwards on the bottom. She is taking a dump and wearing a pumpkin on her head while giving you dome.

Friend 1: Heather came over and gave me a double decker reverse pumpkin blumpkin on Halloween.
Friend 2: Dam shes notorious for that.

double decker reverse pumpkin blumpkin by jrizzel July 29, 2014

Upper Decker Reverse Blumpkin Double Dump Out

Taking a dump in the toilet tank while having your dong slobbed by someone sitting reverse on the toilet while they are dumping

Me and my girlfriend totally did a upper decker reverse blumpkin double dump out!

Upper Decker Reverse Blumpkin Double Dump Out by Dick Head Buckaroo September 20, 2015