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A man or woman, most commonly a man, who drinks a large amount of Keystone Light, and is often much better at drinking games after consuming said beer.
Christ man, did you see Kevin last night? He drank at least a 30 pack of Keystone last night and won every game of pong that he played. Dude's a Keystone Knight.
by Gl0ckt0pus March 13, 2009
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