Girl Scout 
noun chiefly US
A member of the Girl Scouts of America or a similar organization of girls that promotes outdoor activities, good citizenship, and service to others.When I was in elementary school in Colorado, I was a Brownie and then a Girl Scout until the age of 12 when we moved to Kansas....
- I was a sash-wearing Girl Scout for years, but despite my love of its campfire camaraderie, there was something about the Boy Scouts that always seemed cooler.
- I was a cheerleader and a Girl Scout and everything.