to have a big mouth

phrase

1
: to talk excessively, loudly, or in an offensive way
2
: to reveal things publicly that are meant to be kept private

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Cite this Entry

“To have a big mouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/to%20have%20a%20big%20mouth. Accessed 6 Jan. 2026.

Last Updated: - Definition revised
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