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1 definition by cmcdugan

 
1.
Reduction in sensation of the female genitalia due to excessive consumption of alcohol. This can lead to inadequate physical arousal and/or inability to achieve orgasm. This is the female equivalent of whiskey dick.
That last pint gave Angela the courage she needed to invite Tom back to her place but, alas, left her with a bad enough case of beer muff that she was unable to truly enjoy it.
by cmcdugan May 12, 2006