Upper Decker Chowder

After taking a dump in the 'upper' part of the toilet (the tank), the individual is so famished he must dine on his own soup!! Thus..."upper decker chowder"

Man that food Ryan made went right through me...but I wanted to be sure I got all my nutrients so I dined on my own Upper Decker Chowder

Upper Decker Chowder by spqrbc August 31, 2010

Upper-decker Double Blumpkin 

A dude sits atop the toilet tank and craps in it, facing forward. A woman (or man, I guess...) sits on the toilet backwards and also crals as s/he performs oral sex on the guy seated atop the tank.

What were you two doing in the bathroom so long?
I expelled every fluid imaginable thanks to getting an upper-decker double blumpkin.

Upper-decker Double Blumpkin by Terry O'Raynis April 4, 2023

Upper Decker Lip Pillow

Common phrase for a nicotine pouch.

Yo bro, can I get an upper decker lip pillow.

Upper Decker Lip Pillow by glitched0 August 10, 2023

the upper decker 

the act of deficating in the upper tank of ones toilet leaving a foul stench undiscovered with the remnants of muddy water

before i got kicked out of that bar last night i gave them the upper decker

the upper decker by face vol.4 May 23, 2009

Boujee Upper Decker 

Taking a shit in another person’s essential oil humidifier without telling them. Usually as a form of retaliation in which a classic upper decker just won’t cut the mustard.

“I know I had to get back at that twat waffle after he cheated on me with my sister. So naturally I left him a boujee upper decker when I moved out.”

Boujee Upper Decker by Gettin' It.... March 8, 2022

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