1. Someone staying on top of their shit. (ie. making money, accomplishing goals, getting an education, career, etc.)
2. Someone who is always on the grind.
Girl you know I'm a grinder
I can't let you hold me back
You want too much control
It's bringing me down
I have to stay in the grind
And make money and do good things for me.
by Pri Pri December 22, 2006
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What people from Connecticut call a Subway sandwich; a hero; a wedge; a hogie.
Let's go to Subways to get some Grinders!
by BreadbasketGangsta January 6, 2011
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Grinder - Grinding it Out- On the grind

1) A player player who puts in his poker hours in a job-like way

2) Grind it Out, on the grind: working particularly hard, like when experiencing
an unlucky run of cards, to make an acceptable return on your time invested;
or when making a solid return when playing from a small bankroll at lower limits
Poker Pro's: Mugsy Russo is on the grind , The grinder Michael Mizrachi, Phil Ivey is grinding it out on the tournement circuit

"He Quit his job to become a grinder , he just won the world poker tour"

"what do you do for a living?"
"I'm on the grind"

"Today I'm grinding it out at the poker room."
by Boz Conti August 11, 2008
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Grinder : A person usually a male who tries to pick up(grind on) on another man's girlfriend/wife/fiancee etc.
Yo tell joe grinder to stay away from my lady or im punchin' him right the #$%$% out.
by ktownz1 July 9, 2011
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a military term, particulary the US Navy, meaning parking lot.
AT2: "Every one fall out to the grinder for drill."
Recruit: "Aye aye petty officeeer!!!"
by b--rad September 11, 2006
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Noun: Believed to be an otherworldly being or entity by some, and by others to be an incomprehensible force who's nature knows no true form. If I may summon the words of 17th century philosopher, Sir David Tompkins, who's brief definition effectively summarizes this abstract concept: "The Grinder is everything that is." Whatever the case, one thing is for certain: the Grinder and its existence will never be fully understood by mere mortals such as ourselves.

However, much less mystery surrounds the purpose of the Grinder. It is widely accepted that the Grinder's sole function is to select the victims for and to determine the exact date of future Grindings. The Grinder works in mysterious ways, but a Grinding is often awarded to the perpetrator of some evil deed.

The actual act of grinding is performed with ritualistic precision with both efficiency and speed. Henchmen of the grinder must quickly surround he who is to be Grinded and strike him in any manner in the upper body for approximately 20 seconds (headshots are not allowed and may get you Grinded). The Grindee is then released from the Grinder and the act is considered sufficient reparation for the wrongdoing in question.
Travis: Hey, guys! I accidentally kicked the hack into the bush!
David: The Grinder has spoken. To the grinder with him!
(group advances on Travis and consumes him)
Travis: no! noooooooooooooo!
by skeet skeet pete July 15, 2008
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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!
by BeansMcgee May 25, 2010
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