a song that slaps..or that sound crackin/hyphy..bay area
"that song is stupid knock"
by justine from the bay March 03, 2005

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Top Definition
a crackhead
I stayed up all night tweaking like a knock
by Anonymous June 15, 2003

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A knock is someone who is a fiend for drugs of any kind. There can be weed knocks, coke knocks, pill knocks, etc... Also refers to when someone exhibits "knockish" behavior, i.e. fiending for drugs or just acting square. (see square) The word knock is derived from the "knock" of a fiend knocking on the door looking for drugs.
I was left with the decision of whether to bust some knocks and make that money or just kick it with these females.
by jay boon June 12, 2008

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to disregard, turn down; to ignore
Don't knock it until you try it.
You can't knock the hustle.
by Jarene September 17, 2003

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A customer or client; usually having to do with a drug sale.
I'll be back right after I bust this knock.
by Slacker641215 May 17, 2005

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Someone who acts dumb; retarded; or just plain stupid
Mufiin is a king knock, she hit da five foot slap on Jabari.
by Carlos Banito November 08, 2005

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to go to sleep.
i'm knocking. goodnight.
by sonnny11 July 05, 2010

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