Shandy is beer mixed with a lemon or a lemon-lime flavored beverage. the citrus beverage, often called lemonade, may or may not be carbonated. the proportions of the two ingredients are adjusted to taste but are usually half lemonade and half beer. shandies are popular in the uk, europe, australia, new zealand, south africa, and canada (where they are sometimes known by the french name panaché). in some jurisdictions, the low alcohol content of shandies exempts them from laws governing the sale of alcoholic beverages.

Source: Wikipedia