A girl who grinds her booty towards a man/woman particularily when they are dancing.
"She is an apple grinder at parties"
by Marcia V September 26, 2006
1 more definition
When a go puts it in a girls booty and then puts his sack in her puss
damn that ho just got hit up with an apple grinder and she loved it
by Ladies man October 06, 2004