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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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 move used to expel farts when trapped between butt cheeks.
When you fart and it doesn't quite have enough power to escape your butt crack, you have to do the crack rock until that fart bubble gets out.
by Porati September 30, 2016
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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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