A contracted form of the word dude. In the same way foo is the shortened version of fool.
What's up du?

Oh...come on du, hurry up!
by Aberwyvern February 23, 2005
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A descriptive adjetive for modern art as well as an on going easy art movement originating in Oakland California. dU dU was rumoured to be just an off shoot or inspired by the Fluxus. An idea that members of the dU dU movement vehemently deny as untrue or a conincidence. The dU dU absorb other works of art into the movement by commenting on them and stating that they are very dU dU (said with a scholarly accent.)
"What do you think of this painting?"
"It's very dU dU. How much is it?"
"$5,000 dollars."
"Genius."
by Syd Jesus April 13, 2009
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Do and you combined
Du have any chocolate?
Du want a hand?
Du like ice-cream?
by Nix AKA the almighty June 16, 2014
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Code for the Democratic Underground web site. Used on other web sites that don't want to be found by DU residents searching for people talking about the DU. Sometimes used as DUh.
"Man those whacked out liberals over at DU banned me on my second posting challenging them to actually think about a conservative point of view"
by Paul@ARFCOM October 11, 2005
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Depleted Uranium. Is used in the penetrators of anti-tank ammunition.
The A-10 fires 30mm DU rounds with it's GAU-8 main cannon.
by SpaceMarine May 16, 2003
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Commonly-used, abbreviated form of Delta Upsilon, the first non-secret fraternity, currently the world's only international non-secret, non-hazing fraternity. North America's fifth oldest fraternity, it was founded at Williams College, Mass in 1834.

It is also currently Canada's largest fraternity with 5 chapters. Commited to Building Better Men, Delta Upsilon's non-secrecy allows it to be held accountable to its four founding principles, the development of character, the promotion of friendship, the diffusion of liberal culture, and the advancement of justice.

Dikaia Upotheke, Justice our Foundation
I rushed DU, because I don't see the point of keeping a fraternity's values and rituals a secret.
by D_$ September 24, 2007
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