A cocktail made with a lot of sugary ingredients which are often consumed by younger female bar patrons. Consumption of such cocktails will make one put on weight and have horrible hangovers. Examples include the Sweet Tart, Sex on the Beach, Fuzzy Navel and anything with Rum Chata.
You ordered a sweet tart? That’s a fat girl drink!
A very typical drink, ordered by most middle aged men made in a small rocks glass, with heavy ice, a miniscule amount of liquor, extra mixer, and garnished with fruit and an umbrella. It is referred to as a Girl Scout Drink by real drinkers who chose to be a man and drink a Fire Marshall Special to keep their manhood alive.
James, "Why does Carmen always drink those little sissy drinks with no liquor in them."
Glen, "He doesn't have the nerve to order a Fire Marshall Special, so he goes with the Girl Scout Drink instead."