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4.
Bump and grind referred to the seductive walk of burlesque performers, which contained a lot of hip action. As the hips moved in one direction they were said to grind, stopping with a bump; then grinding in the other direction and repeating the pattern, back and forth, back and forth.
this is an old fashioned definition
Look at her walk. She can really give them the old bump and grind.
by Chris April 05, 2004
 
1.
The P.C. name for "sex on the dancefloor." When a guy (usually very drunk and horny) moves behind and gets up as close as possible to a girl to dance to a rap song.
The only way to dance to 50's "Candyshop" song is to bump n grind. It's like practically having sex on the dancefloor.
by Tres14 April 16, 2006
 
2.
The act of having sex.
I don't see nothin wrong wit a lil BUMP N GRIND.
by Joshiro007 February 24, 2003
 
3.
The P.C. name for "sex on the dancefloor." When a guy (usually very drunk and horny) moves behind and gets up as close as possible to a girl to dance to a rap song.
The only way to dance to 50 Cent's "Candyshop" song is to bump 'n grind. Nothing beats the feeling of sex when you are dancing drunk.
by Tres14 April 30, 2006