upper decking

The process of taking a shit in the tank of a toilet instead of the bowl so when the next person flushes, all the shit goes into the bowl

Taking a shit in the tank instead of the toliet is upper decking.

by Jay December 26, 2003

Upper Decking

giving John Barrowman a blowjob on a transatlantic flight

"In the middle of the night ... on a 747 on the upper deck" (hence the term "upper decking")

by qwapos September 7, 2012

Upper Decking

Deficating in the tank of someone's toilet, rather than the bowl. Often employed in malicious context.

Suzy could not figure out why her toiled would flush only brown water. Little did she know that Johnny had upper decked that bitch the previous night.

by Korthos July 27, 2004

Upper Decking

The precise positioning of the penis between a woman's breasts in a stimulating effort to achieve sexual climax.

I can't believe Jake Upper-Decked Carol Cartwright to get a day off of school...

by Colin January 26, 2004

upper decking

The act of masturbating with the aid of a woman's breasts.

Oh man, I can't believe he Upper Decked that girl...

by Colin January 22, 2004

Upperdecking

Removing the lid of the back of someone's toilet and shitting in the clean water. Results in shit running into the boil with every flush

That bitch pissed me off, so I upperdecked her shitter

by Dan April 5, 2004

Upperdecking

This one takes practice. This maneuver requires a toilet with a tank above it, like the ones in most homes. Instead of crapping in the bowl, you shit in the tank. Now don't flush. When the following victim flushes, the rancid waste fills the bowl. If you play your cards right, it may ferment. Great prank for those lame partys.

"I gave that toilet a nice upperdecking, Just wait till she comes outta there"

by CharlesVA August 5, 2006