Meaning of the word blabbermouth in English

What does blabbermouth mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

blabbermouth

US /ˈblæb.ɚ.maʊθ/
UK /ˈblæb.ə.maʊθ/

Noun

a person who talks too much, especially one who reveals secrets or gossips

Example:
Don't tell her anything important; she's a real blabbermouth.
He's such a blabbermouth that he told everyone about the surprise party.