by Kelsey15 March 20, 2014

Similar to the Upper Decker, the Double Decker involves taking a shit in the victim’s toilet, not flushing, then repeating the process in the tank. The end result is the unsuspecting victim flushing the lone turd, only to be accosted by a stream of liquid feces into the bowl. This is far beyond an innocent prank, be sure the victim deserves it, as there’s no going back.
Allen was house-sitting for Sam and had a party at his house...he was only caught because somebody left a Double Decker in Sam’s toilet.
by AlienMan1964 February 7, 2018

The act of two people pooping on the same toilet at the same time.
This typically requires one person to sit on the toilet seat as usual, and the second person to sit on their lap, using the legs of the first person as a toilet seat and aiming for the gap between the legs.
This typically requires one person to sit on the toilet seat as usual, and the second person to sit on their lap, using the legs of the first person as a toilet seat and aiming for the gap between the legs.
“There is nothing Gay about a Galveston Double Decker”
“It was an emergency and there was only one toilet, so we pulled off a Galveston Double Decker”
“It was an emergency and there was only one toilet, so we pulled off a Galveston Double Decker”
by HankFinkle January 18, 2024

when you earn 10 bucks, so you try to double it for 20, but then someone robs you by hiding your earned money in an electric guitar.
Person 1: Hey, I’m pretty sure my money got stolen last Tuesday by that guy with the fender guitar
Person 2: Someone probably pulled a double fender decker on you then….
Person 2: Someone probably pulled a double fender decker on you then….
by imfrom2014 February 3, 2022

a person who is blamed for the breakup of a marriage or family, especially due to having engaged in an affair with one member or many members of the family
by stopcheatingcarlos November 4, 2017

Sex move: when three men are having a threesome and the guy on the bottom is giving anal, the guy in the middle is receiving AND giving anal, and the guy on top is getting anal while his dick/her strap-on flops about like an epileptic fish.
by Diddychimken December 27, 2019

A Double Decker is the action of one removing the top of a toilet, and proceeding to take the actual fastest shit in the top toilet, and leaving it floating like the fucking Titanic.
Double Decker are usually meant to either torment or assert dominance by defecating inside of the toilet.
Double Decker are usually meant to either torment or assert dominance by defecating inside of the toilet.
My friend always asks to use the bathroom, every-time I say “ Don’t shit in the top of my toilet”.
Then he says “I’m not going to”.
Then he Double Deckers me, and I find it a week later because my bathroom develops the most malevolent smell.
Then he says “I’m not going to”.
Then he Double Deckers me, and I find it a week later because my bathroom develops the most malevolent smell.
by Djent Bro! April 5, 2022
