Please stop running off at the mouth during the meeting.
run off at the mouth
idiomTo talk excessively.
He kept running off at the mouth about his vacation, ignoring the fact that everyone else wanted to work.
The politician continued to run off at the mouth, oblivious to the growing impatience of the audience as he repeated his tired talking points.
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all mouth and no trousers
Alternative form of all mouth and trousers.
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all mouth and trousers
Superficial, engaging in empty, boastful talk, but not of real substance.
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all one's taste is in one's mouth
One lacks good taste in aesthetic or cultural matters.
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bad taste in one's mouth
A feeling that something is morally despicable as to cause nausea.
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big mouth
The mouth of someone who talks too much, especially by making exaggerated claims or by inappropriately revealing information.
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born with a silver spoon in one's mouth
Born rich, or into a wealthy family.
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break into a run
To start running.
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butter wouldn't melt in someone's mouth
The identified person appears to be benign, mild-mannered, or calm (but with an integral suggestion that, to the contrary, they really are untrustworthy, disagreeable, or mean-spirited).
Last updated April 17, 2026