Definition
blabbermouth
noun
- a person who talks too much or reveals secrets
Usage: informal
Examples
- Don’t tell Sarah the surprise party plans – she’s such a blabbermouth.
- The blabbermouth in our office always spreads rumors about everyone.
- I can’t trust him with confidential information because he’s a total blabbermouth.
- She called her brother a blabbermouth after he told their parents about her boyfriend.
- The teacher warned the students not to be blabbermouths during the test.
- My little sister is a blabbermouth who tells Mom everything I do.