Top Definition
A blue boy is a cops or any other law inforcement officers.
Man Dave Tezzy that party was bagging for show, until them blue boys showed up.
by Big Bing October 26, 2005
2 more definitions
depending on the location it could be a crip(crab) (its mostly a crip) or a sureno(scrap) or somebody in a gang/clique that bangs blue

its also a famous painting by thomas gainsborough
this red boy ran up n threw up the blood sign and was pistol whipped by a blue boy

a blue boy got shot by a popo
by da_reaver September 02, 2006
(n.) Slang term for cop.
"Stay where you are, blueboy!" (during a robbery)
by Paolo C March 09, 2006

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