What is Muffgrinding?
1.
The act of rubbing vaginas against one another vigorously, with the intent of sexual stimulation to the point of orgasm.
The chicks in that porn flick engaged in some serious muffgrinding before the guy with the long shlong showed up.
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The cramp in your left hand that forms from pressing ~, 1, 2, and 3 repeatedly through 10,000 definitions.
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Get one gay male (excited) and use him in a "game" that consists of him and 3 other straight males. Get a piece of toast, tur..
