A "double" in the context of beverages typically refers to a drink that contains twice the standard amount of alcohol. For example, a double shot of whiskey means that the bartender pours two ounces instead of the usual one ounce. This results in a stronger drink, which can enhance the flavor and intensity of the beverage. In addition to alcoholic drinks, the term "double" can also apply to coffee. A "double espresso" consists of two shots of espresso, providing a richer and more robust coffee experience. This is popular among coffee enthusiasts who seek a stronger caffeine boost.