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1.
Adj. (al-ko-rex-ic)

Individuals (particulary females) who prefer not to take in excess calories in fear of weight gain - and therefore choose to eliminate food from their diet in favor of consuming all of their calories from alcohol.
When the gang all went out to dinner, Lisa didn't order an entree and instead had six martinis. She's definitely an alcorexic.
by Ashley Larson January 02, 2008
 
2.
when one does not eat but gets all of their calories from alcoholic beverages.
"you need to stop drinking and eat something! you are such an alcorexic!"
by M_Weiss April 01, 2008
 
3.
The act of not eating any food during the day in order to be able to get drunk off fewer drinks.
Beth: You haven't eaten anything all day!
Sarah: It's ok, I'm alcorexic today since we're going out tonight!
by Cools14 October 07, 2011
 
4.
Abstaining from alcohol for some reason... Probably a stupid one!
I notice Cabes isn't drinking tonight, he must be alcorexic.
by Baron Von Cabes November 29, 2006