While at a respected friends house retire to their restroom, stealthily remove the lid from the back tank of their toilet and steady your cheeks directly above it. Begin defecating while trying to keep as quiet as possible. When finished, wipe all remaining fecal spatter from your anus and hide the used toilet paper in the cabinet under said friends bathroom sink. When the toilet is flushed by the next user the bowl will be rinsed with your feces. A firm stool will cause repeated minor fecal rinsing, while viscous, soupy stool will flush out all at once filling the toilet thus causing repeat flushing until clean water is present.
The upper decker was rejoiced by all who were present.
by A Tortured Soul March 5, 2006
To receive a blowjob whilst depositing feces in the upper tank of a toilet.
A combination of a blumpkin and an upper decker.
A combination of a blumpkin and an upper decker.
As vengeance for not being given a tour of my friend's dairy, I enlisted his sister’s help in performing an blumpkin decker in his bathroom.
by porkchopbiscut October 25, 2004
Also referred to as 'Going Up Top,' the act of taking a shit in the tank of a toilet. Common courtesy not to flush. Used TP should be placed inside drawers, magazines, or the tank itself. Feel free to throw in any other items you can find in the bathroom during the process.
"Man this party sucks... I'll let 'em know how I feel with an Upper Decker"
"Dude!! You shit in my toilet" -> "Where else did you want me to go?" -> "Not in the top part you fuck!!"
"Dude!! You shit in my toilet" -> "Where else did you want me to go?" -> "Not in the top part you fuck!!"
by ShitBrick February 25, 2004
by BigL830 August 18, 2017
"Hey bro my friend on a discord call is looking for all the deckers on urban dictionary"
"Oh cool, don't forget to tell him about the quadruple decker!"
"Oh cool, don't forget to tell him about the quadruple decker!"
by Random dude who likes deckers August 26, 2022
The more-merciful relative of the dreaded Upper Decker.
A Faux Decker is executed by:
1) Opening the rear tank of a toilet and dropping in a piece of novelty rubber dog poop;
2) Pouring in 1/2 cup (120mL) of instant iced tea mix into the tank as well;
3) Replace the lid and leave the Faux Decker for the next unsuspecting victim.
Upon flushing the toilet, a brown stew will be unleashed, horrifying the user and leading them to open the rear tank...only to see the fake poop and surmise they have been struck with an Upper Decker.
The Faux Decker is a more sanitary prank than the insidious Upper Decker, but you get almost the same shock-value from the Faux Decker as you would the original.
A Faux Decker is executed by:
1) Opening the rear tank of a toilet and dropping in a piece of novelty rubber dog poop;
2) Pouring in 1/2 cup (120mL) of instant iced tea mix into the tank as well;
3) Replace the lid and leave the Faux Decker for the next unsuspecting victim.
Upon flushing the toilet, a brown stew will be unleashed, horrifying the user and leading them to open the rear tank...only to see the fake poop and surmise they have been struck with an Upper Decker.
The Faux Decker is a more sanitary prank than the insidious Upper Decker, but you get almost the same shock-value from the Faux Decker as you would the original.
Dude 1: "I pranked my Mom on April Fool's Day with a Faux Decker!"
Dude 2: "Why a Faux Decker not an original Upper Decker?"
Dude 1: "DUDE, she's my Mom! I wanted to freak her out, not make her disown me!!"
Dude 2: "Why a Faux Decker not an original Upper Decker?"
Dude 1: "DUDE, she's my Mom! I wanted to freak her out, not make her disown me!!"
by FunkPumpkin October 4, 2011
by FamousJew October 29, 2020