blues and twos

English dictionary entry

Meanings

noun
  1. The flashing lights and loud siren of an emergency vehicle.
adv
  1. [of an emergency vehicle] with the blues and twos switched on

Word forms

blues and twos blues-and-twos

Etymology

Originally 1960s police slang, from the blue colour of the lights and the two-tone sound of the siren. Popularised by Blues and Twos, a documentary series broadcast on ITV from 1993.

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