Definition of "flapper" []

• A broad flexible part, such as a flipper. (noun)
• A young woman, especially one in the 1920s who showed disdain for conventional dress and behavior. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "If you've spent your time in the boardroom telling Donald that Mary should be fired, that she's an emotional bitch who can't keep her mouth shut and her big fat flapper is bringing down the team's morale, do not say that you have respect for her."
• "But the Charleston didn't hit till 1923, and the word flapper had been used as early as 1920."
• "The metal buckles had jangled and flapped, which is how the name flapper came about."