upper deck- its when u take a crap in the tank of the toilet. it works best in hotels lol..
ppl do this because it stinks really badly and usually the person tht u do it to, wont find out for a while
ppl do this because it stinks really badly and usually the person tht u do it to, wont find out for a while
by amaragallion89 November 21, 2009
by not all blacks have ebola May 02, 2019
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
by Jay December 27, 2003
by qwapos September 08, 2012
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 28, 2004
by Jason Spires April 20, 2004
takin the top off a toilet tank and shitting in it and placing the top back on the tank and walking away
by DAVE AND CLARK May 09, 2008