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A Cailleach is a woman who is completely perfect in every way, but doesnt get the treatment she deserves.
Guy 1: Dude, that girl is the woman of my dreams.
Guy 2: Oh yeah, I heard she gets abused by her family.
Guy 1: Oh man, really? What a Cailleach.
by McLovin'13 January 01, 2010
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