Someone of Hispanic heritage that has few Hispanic traits. e.g. no Hispanic accent, normally American born and raised, etc.
Guy 1: I'm Mexican.

Guy 2: Dude, you're California born and raised. You're not Mexican, you're Mexicorn. You're about as Hispanic as Taco Bell!
by Brandon Metcalfe January 24, 2010
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Slang for a person of Hispanic orig. specifically Mexico.
Also see: Corn
Damn, that Mexicorn can sure pick lettuce.
by Bud E Love May 02, 2003
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