what is happening?; what is going on?; how are you doing?
'Sup dude' 'hey guy, SUP'
by mArK TwAiN JR March 3, 2009
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A contracted form of "What is up" or "What's up". See "What is up".
Seeing some friends, I often say "sup" to start a conversation and to see what they are up to.
by Scottmana September 15, 2007
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A combination of the two words Whats and Up using the last 3 letters if you combine the word.
by Fife1100 March 15, 2009
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Sup is a very nutty word that can be used in greeting one eachother when the person is a tank.

or
Suuuuup, can be used as an expression of excitement.
Aya: Hey Sup, how u doin?
Nutanese: Hey Sup!!! i am great how about you?

Aya: I'm great too! suuuuup
Nutanese: Suuuup
by The two Sups September 11, 2011
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The act of saying what's up to several members of the same sex, or, several what's up to one individual. When saying sups to one individual, you would be emphasizing hotness.
Damn, you see those broads up there, quick open the window, I'm gonna sups them! "Suuuuups girls, where you from?"
by Love King 604 September 8, 2011
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Dates back to the fatass era. Shortened rendition of What is up?(What's up?)
Sup, holmes
Sup with that hoe?
by Shadditude November 28, 2004
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