double decker 

Urinating and defecate in the upper portion (tank) of a toilet bowl. Coined on Bitch Slap Radio.

"Man, I hate Miami Beach so much, I'm gonna take a double decker in every toilet there.

double decker by E.D.M. August 17, 2007

double decker 

like an upper decker except one shits on the top of the tank lid rather than in the tank

" My boss pissed me off so I snuck into his private bathroom and left him a double decker on his toilet tank."

double decker by Vizualist March 22, 2012

Double Decker 

The double upper decker. performed by two people in the same toilet.

Jared and I both shit in the upper tank of a toilet.

Double Decker by Urban Dictionary August 24, 2005

Double Decker 

When a man and a women, a man and a man, or a women and a women, lay on top of each other and either fuck, or finger each other

Yo, Samantha, and I did a sick double decker last night.

Double Decker by Backseat Flat Stanleys January 31, 2017

Double Decker 

The double decker is a strange sex move which consist a woman taking a shit and a guy shoves his cock in her ass without protection while the shit is coming out and then he puts it in the womans vagina and them cums then the woman farts out the cum and drips it on the guys cock then he puts his dick back in her ass while there is still clumps of shit in her then he puts in in her mouth.

hey dude i just did a double decker with my girlfriend

what is a double decker

you don't wanna know

Double Decker by THE_HENTAI_GOD May 19, 2019

Double Decker 

When you’re so horny but you also gotta take a poop, so for some odd reason you decide to poop inside the top part of the toilet then blow a load on top of it.

My girl had me so hot but so did that Taco Bell, I had no choice but to pop off the toilet lid and drop off a double decker.

Double Decker by TacoBangBang March 7, 2021

double decker 

While taking a duece you realize you need to puke. You cannot reposition yourself so you puke while duecing, therefore you are flowing from both floors, the double decker.

I just busted out a double decker.

double decker by Jon S. April 19, 2004