Cocktail

Officially, a term used to describe a short alcoholic drink that contains three or more ingredients (if it contains only 2 ingredients, then it becomes a mixed drink). If any mixer is added, such as soda water or lemonade, it becomes a long drink.

However, nowadays most people use 'cocktail' to describe all alcoholic drinks with 2 or more ingredients, although if only 2 ingredients are used they must both be alcoholic.