A term used to describe the action of driving past a human and performing an inglorious action, often leaving the asshole of said victim in shreds and their ability to think annihilated.
by GRINDBY January 15, 2010
Your're dancing in the bar/club with your girls and you're in a small area, a guy is walking by behind you and he grinds on you as he walks by. Its called a "Grind By".
by melisrae3 April 23, 2013