original meaning: a dance move that is supposed to include gyration of the hips, whether alone or with a partner. takes skill, and is very sexy. the American word for what Jamaicans call "wining".

today: is sadly usually done half assed by girls bending over and sloppily moving their ass around with little to no skill. the American word for what Jamaicans call "daggering".
"everyone was just grinding at my prom"

"look at them grinding over there"
by lovetodancetoreggae February 04, 2012
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The act of dancing where you rub your penis on a girl's ass in a dancing fashion It feels really good and it never seems to last long enough. Sometimes it can get really graphic and god does it feel good.
Dude, I loved grinding that blond babe with the huge ass!
by jonathanhigh5 July 15, 2006
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is a form of dirty dancing. where a female rubs her booty on a guys dic till he gets hard
by Hannah Richardson May 05, 2005
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dry humping to music. usually at a party or club.

a girl rubbing her ass on a guys crotch until he gets hard.
I was grinding with this girl and i got so hard.
by blahblahblah456 March 21, 2010
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to rotate the hips in an erotic manner, in such a way that the girl's ass is grinding against the guy's crotch through erection, and sometimes even orgasm.
At the nightclub I was grinding with all the mega-hotties, so much and so intense that by the end of the night, my Dick was sore.
by Zackster November 21, 2007
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when a girl rubs her big horny ass on a guys weiner region!!
i was at the club one night when i saw this chick dancing with her friends. her breasts were giant and you could see them through her bra less shirt!!! she was wearing tiny spandex with her big ass hanging out. i could feel a boner coming on..so i decided to please my cock and start grinding against her fine ass. I came over to her and without even asking i just shoved my slef up against her ass pleasing her every pleasure. She then put her hands on her knees and shoved that ass on me!!! i reached under and stuck my hand on her wet pussy. then i squeezed it making her moan and want more. she turned around facing me and put her leg between mine. i thrusted againstt her tight little shorts and unzipped them to have some more fun! then i slid them down and through them in the crowd!!! now it was just her red thong all to myself!! i grabbed her by her ass and pushed her onto me. i grinded that little pussy so hard i could feel the wetness of it onto my pants!. i squeezed her tits and then french kissed that chick so good! i could tell she needed to cool down so i sat her on the couch and massaged her tits to relax her some more. but i needed more for her so i grabbbed her by her thong and forced her to give me a lap dance! boy that ass was so big and firm it hardened my dick so fast! we than went outside of the club and banged each other on the bench waiting for the bus!!!!

and the rest....is a little too wet for urban dictionary
by dirtydirtydirtyooh December 26, 2010
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dirty dancing- the girl rubbing her ass on the guys crotch
yo they were grinding all night long out on the dance floor
by lacy May 07, 2003
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