stands for dragon dagger super poison, on runescape. you have to have 60+ atk to weild, and u have to have done lost city of zanaris quest. it does awsome damage and pwns noobs by poisoning them first, then owning them with special atk.
me: im a noob want to help me explore the wildy?
other noob: sure (thinking since i dont have a wep out i suck)
i whip out a dds, and two hit him
noob: oh no! a dds! ahhhh! you noob!
by pot head370 September 02, 2006
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A pointless and highly obnoxious smiley. It's most likely that it originated because some idiot on an AIM convo made a typo and made to D's instead of one on their =D smiley. So now, every idiotic AIMer uses =DD as a spacefiller. A replacement for "lol" or "xD".
Person 1: I went to school yesterday.
Person 2: =DD
Person 1: ...fuck you.
Person 2: =DD
by Egaro February 01, 2009
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she said i need the "dd"..all i said is yup i'm pipin
by bigdicks for all the hoes October 07, 2010
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Drug dealer, person selling the shit to make you high
"lets blaze, ah shit i gotta see my DD first im out"

by Savoyo August 03, 2008
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When you laugh so hard that your mouth can't comperhand it so your eyes transform to another mouth resulting in a double laugh
Friend: Why did the chicker cross the road? - To get to the other side!
Me: DD
by janekmuric June 05, 2015
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