A flapper was a certain type of woman in the United States in the 1920's. Flappers were known for their unconventional style and behavior.
In the United States in the 1920's, a certain kind of woman emerged: the flapper. Flappers liked to smoke, listen to jazz, and talk about sex. None of this was considered "ladylike" at the time: it was new and shocking. Flappers had their own hairstyles and ways of dressing, especially bobbed hair and short skirts. Flappers were a sign of changing times and more freedom for women to express themselves. There's no doubt the flappers had a lot of style.