Definition of "big mouth" []

• The mouth of someone who talks too much, especially by making exaggerated claims or by inappropriately revealing information (noun)
• A person who has a "big mouth" (sense #1) (noun)

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• "CoTwo bloated to gargantuan proportion, then aimed his big mouth at them and blew."
• "I was unable to keep my big mouth shut, however, and was soon fired when it became all too apparent to the people at the top that Mrs. Ralphs was a loud, lefty feminist and not a liberal career woman."