bright young thing
A young person who is exuberant, ambitious, and glamorous. A: "Daisy is a bright young thing, isn't she?" B: "I know! I wish I had an ounce of her verve and style."
bright young thing
a wealthy, pleasure-loving, and fashionable young person. The term was originally applied in the 1920s to a member of a young fashionable group of people noted for their exuberant and outrageous behaviour.
bright young thing
An attractive, frivolous young woman. This term may have been coined by British novelist Barbara Cartland to describe the flappers of the 1920s Jazz Age and their hedonistic life style. It is heard less often in America.