Top definition
A smile with an attitude.
by grin March 05, 2004
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2
Slang for marijuana (usually laced). A word used primarily in the West Coast in the 1990's.
See also water or wet.
"I threw away all my grin... and I feel strange..." --Sage

"What's your poison? Grin or gin?" --Carl Johnson

"Man I couldn't find that wet I buried, so I'm making my own. It's easy, fool!" --Ryder

"That ese put dust in my grin."
by 4 LIFE May 24, 2013
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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3
A play on words of the Pittsburgh expression "Yins" and the bud expression "Greens." Mostly exists to make fun of pitssburghians.
Yo can I get Grins on this bowl?
by Rocky Lebron June 17, 2010
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Dirty Sanchez Plush

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4
smile so sickly sweet it make onlookers through up on site, or passing meat heats punch the grinning idot!
look at the grin on that bloke he looks like hes just got a new girlfriend
by taity July 26, 2006
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The vengeful act of crapping on a lover's chest while they sleep.

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5
Similar to the old enjoyable verticle smile. It's a hoe's pussy yo!
Gotta love the grin.
by Griz November 16, 2004
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6
an acronym for the set of technologies: genetic, robotic, information & nanotech.

the convergence of theses technologies into a single technology.
investing in GRIN stocks is a sure thing right now.

our children will need access to grintech if they are to compete in a global economy.

GRIN technologies are the modern day 4-horseman of the Apocalypse.
by g.SPIN December 05, 2010
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7
The retarded type that can do nothing but smile. Such as the Wal-mart greeters, or that wierd old lady that lives down the street.
"Dude, he fucking walked into that wall. What a fucking grin."
by tonp April 01, 2009
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Soft and offensive. Just like you.

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