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1.
likely to vomit as in sick, Used in replacement of the word sick when referring to something extremely cool.
Bently GT Convertible with 24's on it? Wow. That shit's vomicious!
by Head Nut In Charge October 08, 2008
 
2.
The feeling you get when you're fairly sure you're soon to be sick.
I shouldn't have drunk all that vodka, i feel vomicious now.
by wise-owl January 15, 2012