mouth off

phrasal verb
mouthed off; mouthing off; mouths off

Definition of mouth off

informal
: to talk in a loud, unpleasant, or rude way He got in trouble again for mouthing off to his teacher. She's always mouthing off about how much better she could run the company herself.

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Dictionary Entries Near mouth off

mouth mirror

mouth off

mouth of the river

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Cite this Entry

“Mouth off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouth%20off. Accessed 19 Aug. 2022.

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