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crack-cocaine, a hard core drug.
In my neighborhood you either slang crack rock or got a wicked jump shot.
by Nick D February 24, 2003
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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Term to describe an amount of crack cocaine. It gets the name because the shape of it because it looks like a small rock.
"Crack rock motherfucka!"

"That bitch will do anything for a crack rock."
by IceWarm November 14, 2004
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A niche of ska/punk/hardcore. The crack rock scene sprouted up from the squats of New York, led by singer/songwriter/guitarist Ezra Kire and his many crack rock bands: Choking Victim, Leftover Crack, INDK, Morning Glory and The Crack Rock Steady 7. The message of pretty much all these bands include: Take Drugs, Drop out, Squat, Kill Cops and the Government and dont be a racist asshole.
Crack Rock is one of my favorite genres.
by (A) DOOM (E) July 27, 2006
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