- Usually Black and Tans. an armed force of about 6000 soldiers sent by the British government to Ireland in June, 1920, to suppress revolutionary activity: so called from the colors of their uniform.
- a member of this force.
- (lowercase) a drink made of equal parts of ale and stout or porter.
- (lowercase) a black-and-tan dog.
- the Black and Tans a specially recruited armed auxiliary police force sent to Ireland in 1921 by the British Government to combat Sinn Féin
- a mixture of stout or porter and ale