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

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(n.) Slang term for cop.
"Stay where you are, blueboy!" (during a robbery)
by Paolo C March 09, 2006

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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

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt