Definition of blues and twos in English:

blues and twos

noun ˌbluːz ən(d) ˈtuːz

British informal

1The flashing lights and siren used on a police car or other emergency vehicle when responding to an incident. Also later "on (also under) blues and twos".
2The emergency services (frequently the police).

Origin

1980s; earliest use found in Autocar. From the plural of blue + the plural of two, with reference to the blue flashing lights and (typically) two-tone siren used on an emergency vehicle.

Definition of blues and twos in US English:

blues and twos

nounˌbluːz ən(d) ˈtuːz

British informal

1The flashing lights and siren used on a police car or other emergency vehicle when responding to an incident. Also later "on (also under) blues and twos".
2The emergency services (frequently the police).

Origin

1980s; earliest use found in Autocar. From the plural of blue + the plural of two, with reference to the blue flashing lights and (typically) two-tone siren used on an emergency vehicle.

词汇	blues and twos
释义	Definition of blues and twos in English: blues and twos noun ˌbluːz ən(d) ˈtuːz British informal 1The flashing lights and siren used on a police car or other emergency vehicle when responding to an incident. Also later "on (also under) blues and twos". 2The emergency services (frequently the police). Origin 1980s; earliest use found in Autocar. From the plural of blue + the plural of two, with reference to the blue flashing lights and (typically) two-tone siren used on an emergency vehicle. Definition of blues and twos in US English: blues and twos nounˌbluːz ən(d) ˈtuːz British informal 1The flashing lights and siren used on a police car or other emergency vehicle when responding to an incident. Also later "on (also under) blues and twos". 2The emergency services (frequently the police). Origin 1980s; earliest use found in Autocar. From the plural of blue + the plural of two, with reference to the blue flashing lights and (typically) two-tone siren used on an emergency vehicle.
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