When someone poops in the top part of a toilet, (the part that you have to take the top off) so when someone else goes to the bathroom and flushes the toilet instead of clean water coming in and filling the toilet, shit water comes in. This is done as a pratical joke, usually done at parties.
Guy 1:Hey I just did that Upper Decker in the toilet upstairs and Jennifer went in there.
Guy 2:Hahahah, what'd she do when she came out?
Guy 1:I don't know, she's still in there!
Guy 2:Hahahah, what'd she do when she came out?
Guy 1:I don't know, she's still in there!
by Kevinnnnnnnnnn December 26, 2009
Get the Upper Decker mug.When a man is taking a shit in the toilet tank while a female is sitting on the bowl reverse cowgirl taking a shit and sucking his dick then once they are finished they preform a reverse 69 licking each others assholes clean.
by tootalljen89 November 22, 2011
Get the kentucky upper decker double blumpkin mug.Related Words
Decked
• decked out
• Decked Down
• decked it
• Decked out sally
• dick decked
• Color Decked
• Double Decked
• Get Decked
• one-decked
by Tarquin_Banks February 22, 2008
Get the Dicked mug.by darth eadz September 3, 2005
Get the dicked mug.The act of taking a shit while another is sitting on your lap and shitting simultaneously between your legs.
Perry and Carl both had to shit but only one toilet was available so they performed a double decker.
by gvanasse32 February 25, 2013
Get the Double Decker mug.the act of deficating in the water tank of someones restroom, so when they flush, out comes muddy madness
by darby krow February 13, 2010
Get the upper decker mug.A girl that flirts with a guy but will never do anything with them and the guy will get friend zoned. Another example is when a girl plays with a guy’s head.
by Jack Dester November 5, 2019
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