blues and twos

== English == === Alternative forms === 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. === Noun === blues and twos pl (plural only) (chiefly UK, Ireland, informal) The flashing lights and loud siren of an emergency vehicle. === Adverb === blues and twos (not comparable) (chiefly UK, Ireland, informal) [of an emergency vehicle] with the blues and twos switched on === References === === Further reading === blues and twos on Wikipedia.Wikipedia