when a man sits on a woman's face and places his anus on the woman's nose and then proceeds to spin around the face making bits and pieces of fecal matter falling off of the anus landing on the woman's face
Guy 1: Dude, last night I was at this party and totally throwed and decided it would funny to spin around on my ass while sitting on some passed out chicks face!
Guy 2: Dude! That's called a coffee grinder, and that's so damn gross!
Guy 2: Dude! That's called a coffee grinder, and that's so damn gross!
by TimmyKelso January 11, 2010
When a man gets down on all fours and a woman strokes his cock while licking his ass at the same time.
Last night i received a "coffee grinder" from this chick.
by Brad B. May 3, 2004
The coffee grinder is the portion of a female's anatomy, also known as the vagina, designed to accept and stimulate the husband's erect penis, so that later on a baby might come travelling down thisbirth canal.
I wouldn't use an internal pad in there my dear because plugging up the coffee grinder can result in toxic shock.
by pamschel March 19, 2006
by Kenneth Whitlock January 31, 2007
A trick performed on a mountain bike or stunt bike where instead of properly landing a jump or bailing off, the rider lands ass first on the rear tire while the bicycle is still in motion, causing the rear tire tread to grind into the helpless rider's asshole as the bike slowly comes to a stop.
"Raul tried to hit that nasty tabletop jump at the bottom of the hill, but the dipshit half chickened out mid jump and ended up doing a coffee grinder instead! What a shithead!"
by BenEvolutioN April 6, 2022