GWD: Flibbertigibbet

This one, again, is self-explanatory, although it's nice to know that there's an adjectival version of it! How flibbertigibbety! Still, it's important to get these words (and the sentiments behind them) out and about. Note that the old age of this word points to the more directly gnomish nature of this word...

flib·ber·ti·gib·bet

Pronunciation: \ˌfli-bər-tē-ˈji-bət\

Function: noun

Etymology: Middle English flepergebet

Date: 15th century

: a silly flighty person

— flib·ber·ti·gib·bety \-bə-tē\ adjective