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1.
adj. term used to describe hot or cool items. hardcore coolness. mainly used to describe hot guys in tight pants.
"omg your shirt is so corex"
by Niki Z. December 07, 2006
 
2.
Corex is the word used to describe a cool person.

The word is derived from the WoW player "Corex" on Blackrock. Corex showed everyone in <Not a Big Deal> what a cool guy he is, and thus; the word now exists as a replacement for the word "cool".
Wow dude, that shirt looks really Corex on you man.
by Ah just geef April 19, 2009