run one's mouth
Talk too much
To run one's mouth is to talk excessively or indiscreetly, often about things better left unsaid.
The phrase typically carries criticism—someone running their mouth is being loud, gossipy, or provocative: He's always running his mouth about things he doesn't understand.
It can also suggest talking tough without backing it up: She runs her mouth but never follows through.
- shoot the breezeConverse idly, without aim
- chatterLight, rapid speech
- flap one's gumsTalk idly, unproductively
- spill the beansReveal confidential information
- babbleIncoherent speech
unfiltered · verbal diarrhea · speak out of turn · blurt · let slip · boastful · ramble · opinionated · gossip · air dirty laundry · garrulous · embarrass · loose cannon · talk out of turn · tactless · provoke · rant · irritate
run one's mouthkeep quiet
Remain silent
hold one's tongue · keep one's mouth shut · keep mum · shut up · button one's lip
runs, running, runner, runners, runny, overrun, mouth, mouths, mouthed