Something absolutely cool but to cool to say cool so you say Sick!!! Often Ahhh is put infront of sick.
Friend 1: Yo man a dead rabbit

Friend 2: Ahhhhhhh sick dude!!!
by Mooza August 07, 2005
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depending on the context it can mean a number of things.1 awesome,2 Disgusting or 3 just feeling not well
1.that was sick man, how you punched that guy

2. person 1."look at that dead pigeon." person 2."thats sick"

3.i didn't go to school today cause i felt sick.
by grubwestie July 22, 2008
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A term used to describe an event that was so cool, awesome can't be used.
Joe Schmo: Dude! That backflip off your board was sick!
by Nerdasarous January 28, 2011
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When something happens that is bad, when you are mad.
"Yo, I just spilled ketchup on my new pants."
"Ohhhhh. You sick!
by Crack Jack March 07, 2010
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The state of a being, action, or object that deserves true recognition, further contemplating, or in certain cases, a recognition of a persons actions that are truley without a rational consciousness. Commonly over used. Not to be used for artificial bullshit, only used when something truely "sick" occurs.
"The whole side of that building had a sick murel design.", " That concert was sick." or "That sick fuck threw a microwave out of his car window."
by ajwdesigns May 10, 2008
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1. awesome, extremely wordfresh/word, etc.
2. bad/upsetting
1. "That nollie frontside-flip was sick!"
2. "That guy's hair was sick!"
by Silent Ninja c1998 July 15, 2003
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