noun
- a person who talks too much or reveals secrets
- a person who boasts or brags excessively
Usage: informal
Usage: informal
Examples
- Don’t tell Sarah the surprise party details – she’s such a bigmouth.
- That bigmouth at work is always bragging about his salary.
- I can’t trust him with confidential information because he’s a bigmouth.
- The bigmouth in our group ruined the surprise by telling everyone.
- She called him a bigmouth after he revealed her personal business.
- Nobody likes working with a bigmouth who can’t keep things private.