blue-and-white
Slang for a police car, referencing the classic livery of blue-and-white paintwork worn by patrol vehicles in many countries, including the UK and parts of the US.
Etymology timeline
Born ~1960 · 1 year of recorded useDefinitions
Slang for a police car, referencing the classic livery of blue-and-white paintwork worn by patrol vehicles in many countries, including the UK and parts of the US. The term strips the vehicle down to its most visible feature — the colour scheme — in the way street slang often reduces authority figures to their most recognisable symbol. Spotting a blue-and-white can signal anything from casual neighbourhood watch awareness to urgent 'heads up' warnings among people who'd rather not be stopped.
Everyone on the corner scattered when someone yelled that a blue-and-white had just pulled onto the street.
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(slang) A police car.
“#StreetArt "Tigers blue-and-white porcelain style" by NUT #China”
— Bluesky· May 2026
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(US, slang, law enforcement) A police patrol car.
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(US, slang, by extension) The police, a police officer or the clothing they wear.
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(UK, Irish, slang) (from the common UK colour scheme of white with a red reflective horizontal band) A police car.
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(UK, US, slang, mostly, in the plural) A policeman.