The act of performing cunnilingus on a woman who is also receiving missionary intercourse from a different male partner. This act is usually done without any prior agreement between the parties invlovled.
Dude, last night Brian tried to pull a Decker Special when I was railing Maria in the laundry room, I think he licked more wiener than puss.
by Sneaky Sneaky Sneaky February 3, 2011
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A commodore from Star Trek that went mad and lost his mind after he encountered a giant alien robot planet killer thing that ended up crippling his ship and killing his entire crew.
Finals week always makes me turn into Matt Decker.

The test Matt Deckered me.

That bitch was crazier then Matt Decker.

You look like Matt Decker; don't you know how to shave?
by CaptKirk April 29, 2010
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A bikini, lingerie and nude Playboy model. Once you've seen her, you could say she is the hottest redhead alive.
Standing at 5'4, loves rock music and has a body you would give anything for. 10/10
Leanna Decker Breasts
by Marsvolta 1988 October 15, 2013
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The act of defecating in a urinal. Commonly done in a old fashioned urinal system in which the water does not flush, leaving a wretched stench and a very unusual surprise for any unsuspecting person who wishes to urinate.
"This school dance sucks!, i'm going to take a lower decker in the bathroom."
by Papa Panda December 22, 2011
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Three units of residential housing stacked on top of each other. Ubiquitous in the urban areas of central and southern New England, especially Worcester, Massachusetts. Also known as triple decker.
"I grew up in a three decker on Grafton Hill. My grandparents lived on the first floor and my aunt lived upstairs."
by John.F.Murphy March 15, 2008
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The act of taking off the back lid of a standard toilet, hovering your anus over the opening and shooting diarrhea into the tank water. You must then wipe with TP and leave the TP in the tank. Adding red food dye to the tank is called BUD, or Bloody Upper Decker. Either with or without the dye, when the next person who uses the toilet flushes, the water that refills the bowl will be the most vile, horrific, stinky fluid known to man. Woman have been known to scream and run out of the toilet as they think their insides are coming out. Key stuff here.
"I was working a night party at that rich cunt's house. As the party was ending, I asked the beeotch if I could make a sandwich. She yelled at me in front of her guests that I will "eat with the rest of the hired staff at the end of the night!" A simple no would have been fine. For a thank you gift, I pumped a gallon of milk into my lactose intolerant ass and dropped and Upper Decker that cunt's main bathroom. Later, I Bloody Upper Decked (BUD) the upstairs daughter's fine china toilet. After that I raw dogged one of the workers and bailed, yo.'
by Dick Smartly July 3, 2014
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The most beautiful, amazing, perfect girl you will ever meet. She will keep you up at night just thinking about her. She will be your first, and your last thought every single day. From the first glance you will fall for this girl, with her perfect personality, perfect eyes, perfect smile, perfect everything! She will make you fall madly in love with her, and you are going to wish she is your wife, even before you know all about her.
Damn, Krysta Decker is so perfect!!!

Krysta Decker is one day gonna be my wife!!!
by Wazowski_Pola May 31, 2017
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