What is Beer Muff?
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 
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.
See 
Random Words:
1. 
A form of erotica (sensual romantic situations) that occurs between people of the same sex, especially in the case of a same-sex couple...