Upper Decker

The act of defecating inside the water tank of a toilet.

Step 1: Go to the home of your mortal enemy. Ask to use the bathroom.

Step 2: Approach toilet and remove the water tank lid.

Step 3: Step on the sides of the toilet and squat over the water. Carefully take a massive dump. Wipe your ass and dispose of toilet paper in the trash bin.

Step 4: Place water tank lid back on the toilet.

Step 5: Escape.

What happens? With each resulting flush, it will fill the bowl with a chunky brown water. Its the gift that keeps on giving :)

Lady mere mere: Just took a massive upper decker

Bro: Are you serious? Thats messed up. You really know about upper deckers

by t-bozz January 28, 2013

Ryan Decker

massive peen

Ryan Decker has a massive peen

by Go Bulldogs May 15, 2019

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.

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."

by Vizualist March 22, 2012

upper decker

AN ACT OF WAR. To take shit shit (some crazy how) in the upper tank of a conventional toilet. The next flush will be your shit and shit colored water. WARNING: The tank will be saturated with your shit. Hence the WAR about to commence. Do not do this without an immediate exit plan. And a fucking follow up plan of how and why you did such a fucking nasty thing.

I took and Upper Decker and dipped. Because I hate that fuck. And I am also a nasty unhygienic piece of shit whom wanted to fowl their party and embarrass.... fucking however.

by theutopianing September 19, 2012

Triple Decker

A sex act involving three people, 2 males and 1 girl. First one man lays on his back with an erect penis. A girl then lays on top with the erect penis inside her anus or vagina, doesn't matter. Then a second man will get on top of the girl and insert his erect penis into an available hole (vagina, anus, doesn't matter).

When doing a Triple Decker your penises can touch inside the woman

by stinkywhitedick September 29, 2015

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.

by Urban Dictionary August 24, 2005