blues and twos


Also found in: Medical, Wikipedia.

blues and twos

An emergency vehicle, such as an ambulance or police car, that has blue flashing lights and a siren that sounds two notes. Primarily heard in UK. Pull the car over and let the blues and twos pass.
See also: and, blues, two

blues and twos

the siren and blue flashing lights of an emergency-service vehicle. British informal
The twos refers to the vehicles' two-tone siren.
2003 Bolton Evening News They will go out with local officers and really learn the craft of being a beat bobby rather than just going out in blues and twos.
See also: and, blues, two