-
An alcoholic beverage made from a dark and a light malt, typically Guinness or Beamish stout (black) and Bass or Harp ale (tan). In the United Kingdom, the liquids are mixed together. In the U.S., the heavier liquid fills the bottom of the glass, and the other is poured over a spoon to avoid mixing.
(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License