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When a gentlemen offers to dry hump a girl's ass on the dancefloor when no one else is willing to. An act of true selflessness, primarily aimed at raising said girl's self-esteem.
I felt sorry for that girl last night, shaking that ass all night without a dick to park it on. So I gave her a mercy grind.
by Baby benz secretary July 04, 2009

Words related to Mercy grind

ass booty clear heels grind jiaozi