Meaning of the word bigmouth in English

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

bigmouth

US /ˈbɪɡˌmaʊθ/
UK /ˈbɪɡˌmaʊθ/

Noun

a person who talks too much, especially about things that should be kept secret

Example:
Don't tell him your plans; he's a real bigmouth.
She was called a bigmouth for revealing the surprise party details.