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The Police.

50, pronounced "five oh", means the cops. It comes from the cop show Hawaii 5-0, and IT HAS JACK SHIT TO DO WITH MOTHERFUCKING CROWN VICTORIA'S, YOU STUPID MARK!!
50 by Carl Johnson December 14, 2004
Related Words
50 Cent • 505 • 50/50 • 502 • 500s • 50 50 • 50 cal • 503 • 50 shades of grey • 501
'those fat ass 50 mutha fuckers wont be able to scale that fence'
50 by MC Boonge August 13, 2003
It is not fromm 5.0 Crown Victoria. It is from Hawaii 5-0. Meaning police.
we was out on road and 5-0 came and bus' up our shit, an' ting y'naa?
50 by nopunk December 9, 2003
Can mean 2 things in the Bay Area: one, can signify cops, police etc. two: can signify the 1984 to 1991 ford mustang 5.0 nicknamed 50 (fifty) mostly used as a sideshow car or a cheap getaway car when pulling licks.
Example one: Shit we got 50 following us!!
Example two: That nigga big murf's 50 go dumb at the sideshows whaa!!!
50 by BayBosses707 October 18, 2008
A bag of heroin. Cost- $50.00
Damn nigga, you shot dat whole 50?
50 by acdegrees November 8, 2004
The number between forty-nine and fifty-one.
fifty plus fifty equals one hundred.
50 by Arrana April 14, 2005
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