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