"Mountain dew" used to refer to illegally distilled liquor, or moonshine. Today, though, the phrase is associated with a line of sweet, caffeinated beverages ...
From 1964 to 1987, there was only one flavor of Mountain Dew sold, which was the original citrus flavor. In 1988, Pepsi released the second Mountain Dew drink called Diet Mountain Dew. Ten years later, the 3rd Mountain Dew flavor would be introduced called Mountain Dew Red in 1998. This ...