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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.

by t-mano December 01, 2006
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Sep 8 Word of the Day
A casual invitation / threat used by an individual that is not afraid of fucking someone up.
PAUL: I'm going to beat your ass.

JACK: Fuck around and find out, fool!
by NX STARCHILD October 16, 2020
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