Flibbertigibbety

Part of speech: adjective

Definitions

1. A person exhibiting a lighthearted and talkative nature while displaying capricious and whimsical traits
2. An individual known for their giddy demeanor, characterized by excessive chattiness and a playful, whimsical attitude
3. Someone who talks a lot in a silly or flighty way, showing lively but unstable moods

Etymology: "Flibbertigibbety" is simply the adjective formed by adding the suffix "-y" to "flibbertigibbet", a noun for a silly, chattering person. The "-y" ending turns that noun into a description of someone or something that behaves in such a flighty, giddy way, much as "stony" or "bloody" come from nouns. The noun it rests on, "flibbertigibbet", is the more colourful part of the story: it is a playful, sound-driven coinage whose rhythm suggests the rapid, nonstop chatter it describes. Its repeated "-ib-" sounds mimic a flurry of talk, and the word has long been used for a gossipy or scatterbrained person.