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to put up your defenses, your guard. Could also be used as a place over crowded like *this place is (deed) up*.
*d up bitch your about to get snuffed*

*damn b the place deed up*
by Romaineheart July 08, 2003
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Jul 30 Word of the Day
A kid in my class is a water slapper
by jgyhsref January 22, 2020
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someone who is an idiot or doing something idiotic or even looking like an idiot

synonyms for the word "dup" : dumb, stupid

can also mean when someone has a delayed reaction to something
"why you being a dup"

"don't drink too much or else you'll start looking like a dup"
by mysterygirl31 February 23, 2020
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What's up, Similar to Sup (whats up) people say whaDUP.

A way to open up a conversation with swag.
Yo, dup? Haven't seen you in a while.
by Things R Heeten Up February 04, 2013
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To give a blowjob or act slutty. To give head to anyone when intoxicated just to make people think you are sexually advanced and cool.
That chick d you up?
Yo, cmhere and d me up.
Dawg she always wants to d-up at every party.
by aksgnad June 04, 2006
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