1. 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.
2. a member of this force.
3. (l.c.) a drink made of equal parts of ale and stout or porter.
4. (l.c.) a black-and-tan dog.
Pronunciation: (blak'un-tan'),[key] —adj. 1. (of a dog) of a black color with tan markings above the eyes and on the muzzle, chest, legs, feet, and breech.
2. Informal.composed of or frequented by both blacks and whites: a black-and-tan musical revue of the 1920s.