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1.
Noun; To be an idiot or stupid person
Past tense verb (Greenhawed); To make an act idiotic or totally miss the target, to screw up.

Antonyms: perfect right on
Synonyms: wrong stupid idiotic
Noun; You're such a greenhaw!
Verb; Dude, you totally greehawed that!
by hello4214 October 17, 2010