Synonyms

mouth off

British

verb

informal to give an opinion or speak emotionally, often without much care or consideration

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mouth off Idioms

Complain or express one's opinions loudly and indiscreetly, as in She was always mouthing off about the other members . [ Slang ; 1960s]
Speak impudently, talk back, as in He got in trouble by mouthing off to his teacher . [ Slang ; 1960s]

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

McClean, who plays as a winger, said a group of rival fans "started running their mouths off" at him as he was getting out of his car in the players' car park.

From BBC

That said, the expectation from some that Powell will be shooting her mouth off or frequently public disloyal is overdone.

From BBC

Horseradish isn’t clamoring to burn your mouth off.

From Salon

“I don’t believe in going back to Wall Street and shooting my mouth off,” he told The Times.

From Los Angeles Times

It is a case study in the dilemma UK ministers face: they are striving to have a close and productive relationship with a White House known for shooting its mouth off.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023