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 24, 2004
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Get the THE UPPER DECKER mug.This act requires both a male and female to perform. A male takes a crap in the upper tank of the toilet while performing a delicate balancing act, and getting his cock sucked, as the female takes a crap on the toilet facing the wrong direction. Much like how AC Slater sits in a chair when he's at the Maxx.
I got my girlfriend so drunk that I was actually able to convince her to perform the Upper Decker Blumpkin AC Slater with me while my buddy hid in the closet and video taped the performance!
by GivinHer TheBusiness December 30, 2007
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Get the upper decker mug.Taking a dump in the toilet tank while having your dong slobbed by someone sitting reverse on the toilet while they are dumping
by Dick Head Buckaroo September 20, 2015
Get the Upper Decker Reverse Blumpkin Double Dump Out mug.the act of taking a shit in the cistern of a pub or restaurent toilet to highlight dissatisfaction at service or food standards.
causes the water flushed into the toilet to be shitty. and lets face it, who is gonna take a turd out of a cistern??? muuhahahaha
by UnCLe_MeLLoN_BaLLs April 7, 2003
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