A mixture of two alcoholic beverages, most frequently those brewed from malt, such as porter and ale or mild and bitter beers, in about equal parts; also used for equal parts of an alcoholic beverage and water
Half and half refers to various beverages or liquid foods made of an equal-parts mixture of two substances, including dairy products, alcoholic beverages, and soft drinks
Mixture of bitter ale and Pilsner beer, hence Yuengling Porter and Beer Also used interchangeably with Black and Tan In England this is specifically Guiness and Harp