1.) Designated Driver
2.) Drunk Driver/Drive Drunk
1.) Joe is the DD tonight so drink all you want.
2.) I'm about to DD my wasted ass home.
by Rk57 December 11, 2005
Drunk and Desperate; of a typical girl you see at sleazy parties, with her cleavage flailing about, dancing wildly and giving any guy 'the look'. Upon hearing the words "want... drink...?" will throw herself at you, utterly ignoring the fact you could be a rapist, a murderer, or both.
A: Dude, check out that chick at the bar, the one with her t**s popping out.

B: Go for it man, she's a DD, it should be easier than taking candy from a baby.
by mattyg123 February 13, 2010
(duhb-uhl dee) - VERB

To screw up a task so simple that it could have been done by amoebas.
"Oh dear GOD, all I wanted you to do was turn on the light, how the hell can you DD that?"
by Crowdsurfer February 07, 2010
D.D. - (pronounced "double D")n oun /adj / or nickname- describes large penis of a man in comparison with that of a large animal, or in this case, a donkey;
ex. Just call me D.D. or, That dude might be stupid but I'm sure he's got a D.D. or, my boy ____'s got a D.D.; thats why we call him that.
by D. Byrd June 17, 2008
due diligence (research into all aspects of a certain topic)
Dude #1: "Hey man, should I buy stock in XYZ company?"
Dude #2: "Dude, do your own DD."
by whodey June 16, 2004
Daddy Dick
Yeah last night, Ronny gave me that DD!!
by luuZER May 01, 2009
Direct Download, used as a keyword on search engines to find Direct Downloads for important stuff.
Hey dude get the last DD Naruto... !
by VIPsushi February 05, 2009

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