Flibbertigibbet

Suggested by Helena G.

Definition: (from dictionary.com)
-noun
1. a chattering or flighty, light-headed person
2. archaic. a gossip

Examples:
"Don't trust Barbie with your secrets; she's a flibbertigibbet."
"They should create a tabloid called 'Flibbertigibbet.' It would be an appropriate title."

Origin: (from etymonline.com)
"1540s, 'chattering gossip, flighty woman,' probably a nonsense word meant to sound like fast talking; as the name of a devil or fiend it dates from c.1600."

Awkwardness rating: 9

My favorite tabloid, "Flibbertigibbet." (cliparts101.com)