Upper Decker Double Blumpkin

The act of sitting on the top part of a toilet and shitting while getting head by the girl who is strattling towards you on the bottom seat while also taking a dump at the same time.

The raunchiest act of the famous "blumpkin" to the next extreme calling it the Upper Decker Double Blumpkin.

by Dante Rau July 20, 2006

upper decker

the act of sneaking into a bathroom, quietly lifting the lid off of the toilet tank, taking a deuce in the tank and then replacing the lid. this causes the toilet water in the bowl to be polluted after each flush. this is usually done at a party or too someone that you despise.

heath snuck into the frat house bathroom and left an upper decker in the tank, much to the dismay of the alpha betas.

by kirk May 31, 2005

Upper Decker

A toilet prank, whereby someone defecates in the refill tank (water closet), causing each additional flush to deliver brown, poopy water into the bowl.

Jim was being such a jerk at his party, so I went upstairs to his bathroom and dropped an upper decker in his toilet.

by bodythunder December 9, 2008

Tech-decking

Another term that refers to fingering a girl.

1. Remember that girl that I met at that party last night? I totally tech-decked her!
2. My roommate totally came in when I was tech-decking Ashlyn; and I don't mean playing with the little skateboard.

by Jeeves377 November 15, 2009

Cunnilumpkin Decker

A variation of the cunnilumpkin in which a woman receives cunnilingus while she deposits feces into the upper tank of a toilet. This is the female version of the blumpkin decker, and is far more difficult.

A combination of the cunnilumpkin and an upper decker.

The hostess of the luncheon offended Mary and in turn embarrased her husband, so the two of them snuck off to the master bathroom did a shameless cunnilumpkin decker.

by Mental Pickpocket October 30, 2004

black-n-decker pecker wrecker

braces in the female mouth....if used during felatio, will shred the man's penis

"dude, your sister is a black-n-decker pecker wrecker"

by Jincks, the owner of your souls October 5, 2003

decked

to get punched ususally in the face once and fall to the floor

I DECKED my brother yesterday it was cool

by butt muncher545 December 16, 2008