When you perform sexual acts with 2 different partners and don't shower in between.
Dude I just pulled a dirty double on Sharonda and LaQuan!!!

Dude I love chlamydia!!!!
by Doc N September 15, 2012
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When someone shits and pukes at the same time. This horrific and awe-inspiring act is generally accomplished in a friends bathroom after a night of heavy drinking.
"Oh man, did you see Crazy G last night? She got The Dirty Double in my car. I'm never gonna get that smell out."
by MC Nutreal July 7, 2006
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When you are in bed with a girl and you do a little hop and hit that sweet spot
"Did you hear about what Simon did to her?"

"No what?"
"He did the DIRTY DOUBLING DOODLER"
"OMG I can't even"
"I know girl"
by DirtyDoublingDoodler May 25, 2014
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Vomiting while pooping or pooping while vomiting.
While sipping back on a little too much of daddy's old scotch, you begin to feel nauseous as your previous meal catches up with you. Then, the real party begins. A mass explosion, with vomit exploding out the front and your feces exiting the rear. Thus, you have begun the ol' dirty double discharge.
by darble andrews November 19, 2010
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The whole point of the Dirty Double Reminder is so the chick is reminded of you the next day or longer. In order to pull this off you must nailed her hard so she is sore, and you must write your name on her ass. This way she is reminded in two ways.
I pulled the Dirty Double Reminder on that chick to ensure that she would never forget me.
by Cummins07 August 15, 2007
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going to the bamboo 2 nights on the trot.
"CB what are you doing this weekend ?"
"I'm staying in I did the dirty double last weekend"
by JJ and Bradders November 1, 2003
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The highest dishonour one can bestow upon another. It's a medal (metaphoric or physical) awarded to a person whose evil devious dastardly backstabbery knows no bounds.
Bender was awarded The Dirty Double Cross by Richard Nixon in a feature length episode of Futurama for pulling off a time travel scam.
by asstastic March 31, 2012
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