grinder 

A pejorative term for a Slovenian-American. From the German word Krainer, a person from Krain, the German name for the Austro-Hungarian province of Carniola in modern-day Slovenia. Prevalent in the Great Lakes region, the Midwest and Appalachia. Variations include griner (GRY-ner), krainer (KRY-ner) and granish (GRAN-ish), from Krainische, meaning Carniolan. Granish is specific to western Pennsylvania.

Bridget married some grinder from Collinwood.

grinder by Primorec May 15, 2008

grinder 

A rough-looking person who hangs out in rough neighbourhoods and doesn't do very much. Likely to make trouble.

Lotta grinders trying to get freebies at this McDonald's today.

grinder by lottagrinders March 21, 2013

grinder 

A player in massively-multiplayer online (MMO) games that is content to complete mindlessly repetitive tasks in order to increase an arbitrary number within a game to "level up".

Player A: "Hey, QuidditchKid792. How did you get your level up so fast from last night? You must have gone up three levels!"

Player B: "My friend is a grinder, and he leveled me up all last night in exchange for some Tier 6 equipment."

grinder by the400rabbits December 9, 2009

grinder 

some one who is into the metal subgenre grindcore

Napalm Death are fucking hardcore grinders man!! they practically invented grindcore!!

grinder by JTLC January 2, 2005

grinder 

A girl that knows how to back up the ass behind her.

She was hell of a grinder. I should have held on to her longer.

grinder by Mr. Klauz December 27, 2010

Grinder 

When a girl is inexperienced at giving blowjobs and scrapes her teeth up and down your shaft and may accidentally bite down on your penis.

Dude that girl sucks at giving blowjobs! Bitch gave me a Grinder!

Grinder by BeansMcgee May 25, 2010

Grinder 

Some asshole who spends hours on end killing mobs in various MMORPGs with no real aim or purpose to gain levels at a supposedly increased rate.

Did you see that Grinder running around in Stranglethorn Vale? The guy should totally be doing the Green Hills of Stranglethorn quest while killing those humanoids.

Grinder by xenoletum May 2, 2009