blabbermouth
- n someone who gossips indiscreetly
- The national weekly Truth called him "at best a big blabbermouth.
- Your spoilsport reviewer should have the last reel withheld from him, 'cause old blabbermouth can't resist giving away the story, as he does in all four reviews this week June 30.
- And, of course, we have the blabbermouth Dianne Feinstein helping the cause: http:www.