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not know one's ass from one's elbow

Slang definitions & phrases for not know one's ass from one's elbow

not know one's ass from one's elbow

verb phrase

(Variations: a hole in the ground or third base may replace one's elbow) To be very ignorant; be hopelessly ill informed; be stupid; know from nothing: Well, he obviously didn't know his ass from a hole in the ground/ He doesn't know his ass from third base (1930+)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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