Meaning of the word "mouth off" in English

What does "mouth off" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

mouth off

US /maʊθ ɔf/
UK /maʊθ ɔf/
"mouth off" picture

Phrasal Verb

1.

to speak in an insolent or disrespectful way, especially to someone in authority

Example:
He got fired for mouthing off to his boss.
Don't mouth off to your elders.
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