flibbertigibbet
/ˌflɪbətiˈdʒɪbɪt/noun
High School
1
An offbeat, skittish person; especially said of a young woman.
2
A flighty person; someone regarded as silly, irresponsible, or scatterbrained, especially someone who chatters or gossips.
3
An imp, a fiend.
#archaic