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A cultural reference to drawing dicks on table tops and other related surfaces. While it is immature and wrong, it can be, at times, hysterical. D's Up is usually a formal way of greeting someone who does this sort of thing.
Guy 1: "Hey man, what's up?"
Guy 2: "Hey yo, D's Up."
Guy 1: "Ah yes, D's Up indeed."
by Skittmier September 20, 2009
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Double Sup
Used by C programmers which know the definition of a DWORD (unsigned long), and set it up for a DSup.
by SolarTech April 28, 2003
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