dirty sanchezのようなどんな単語でも探してください。
 
22.
When one takes a shit in the upper portion of the toilet. ( the tank ).
mike was really pissed that the land lord was evicting him. So he left him an upper - decker.

Jim wanted to get back at his best friend Steve for sleeping with his girlfriend, so he left him an upper - decker.
TNT- DOUGによって 2006年09月27日(水)
 
23.
When you go in the TOP tank of the toilet. Best used at a party or with an audience.
Aw, man! Someone pulled an upper decker!
Goldgoatturdによって 2009年02月20日(金)
 
24.
To take a shit in the top of the toilet, therefore when the toilet is flushed, brown water washes the poop down.
"That fuckin bitch wouldn't blow me so I am going to leave her an upper decker"
chops renferによって 2006年08月22日(火)
 
25.
Step 1) Make sure nobody's around.

Step 2) Quietly open the lid of the upper-section of the victim's toilet.

Step 3) Quietly place the lid down on the floor.

Step 4) Then take a nice shit in the upper-section of the toilet without letting anybody hear you.

Step 5) Wipe your ass.

Step 6) Place the soiled toilet paper in the upper-section of the toilet or in a drawer or magazine.

Step 7) Slowly lift the lid off the floor with your fingers under it and carefully bring it over to the toilet.

Step 8) Here's the hard part; with your fingers under the lid
slowly place the lid on the toilet. No false moves or you're screwed.

Step 9) Leave and don't let anybody see you. Just bail as quickly as possible.

Step 10) Mission accomplished.
Plumber: It looks like you have feces in your toilet's tank.

Victim: It must have been an upper decker.

Plumber: Yeah right. Its already clear that you're stupid enough to shit in there!
Mike_Litorisによって 2011年06月27日(月)
 
26.
take a shit in the top of someones toilet (where all the toilet guts are)
Valerie was so drunk she did an upper decker in her friends toilet at the party, and everyone smelt it.
valereによって 2008年03月13日(木)
 
27.
A long home run ball hit into the upper seats of a baseball stadium.
After I caught an upper decker at Busch Stadium, I went to Dan's house where I left a beefy sewer pickle in the tank of his toilet.
porknutによって 2005年08月11日(木)
 
28.
AN ACT OF WAR. To take shit shit (some crazy how) in the upper tank of a conventional toilet. The next flush will be your shit and shit colored water. WARNING: The tank will be saturated with your shit. Hence the WAR about to commence. Do not do this without an immediate exit plan. And a fucking follow up plan of how and why you did such a fucking nasty thing.
I took and Upper Decker and dipped. Because I hate that fuck. And I am also a nasty unhygienic piece of shit whom wanted to fowl their party and embarrass.... fucking however.
theutopianingによって 2012年04月18日(水)