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1 definition by Mickomick

 
1.
Name for a gang of Irish-Catholic vigilantes in 17th century Ireland. They attacked Protestant landlords who oppressed Catholic tenent farmers. Used today by Irish-Americans to describe a fellow Irishman as a homocidal maniac.
Aye, that's one crazy Whiteboy!
Stay clear of him,that Whiteboy is out for some payback for sure.
by Mickomick April 04, 2010