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mouth off

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verb (intr, adv)
British informal to give an opinion or speak emotionally, often without much care or consideration
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The rainy weather could not ________ my elated spirits on my graduation day.
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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

How to use mouth off in a sentence

Other Idioms and Phrases with mouth off

mouth off

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]

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