Originally used for women; implies excessive talking or lack of seriousness. The aunt called the chatty niece a flibbertigibbet during family dinners.
Pro Tip 2/3
Cultural Reference
May appear in literature or musicals as a quirky, talkative female character. Maria from 'The Sound of Music' was called a flibbertigibbet for her lively behavior.
Pro Tip 3/3
Not Insulting
Used playfully, rarely to cause offense but to point out someone's lightheartedness. She laughed when I jokingly referred to her as a flibbertigibbet.