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Synonyms

mouth off

British  

verb

  1. 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  

  1. Complain or express one's opinions loudly and indiscreetly, as in She was always mouthing off about the other members . [ Slang ; 1960s]

  2. 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.

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

From BBC • Oct. 25, 2025

"She's trying to defend her daughter, why doesn't she stop shouting her mouth off and take ownership of how she raised her daughter," Imbriale told Fox News Digital Tuesday.

From Fox News • Jan. 11, 2022

“These guys shooting their mouth off are just not really thinking very well.”

From Washington Post • Dec. 2, 2021

Madeline realizes that maybe she shoots her mouth off too much.

From Salon • Jun. 7, 2019

Uncle said to Vonetta, “I’m your uncle, not your equal. Don’t you ever mouth off to me. Do you hear me, girl?”

From "Gone Crazy in Alabama" by Rita Williams-Garcia

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.