What is a "flapper girl" from the 1920s?

Dresses differently, acts not in normal cultural ways, very rebellious

Flappers were a "new breed" of young Westernwomen in the 1920s who wore short skirts, bobbed their hair, listened to jazz, and flaunted their disdain for what was then considered acceptable behavior. Flappers were seen as brash for wearing excessive makeup, drinking, treating sex in a casual manner, smoking, driving automobiles, and otherwise flouting social and sexual norms.