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Definition of mouthy adjective from the Oxford Advanced Learner's Dictionary

mouthy

adjective
 
/ˈmaʊθi/,
 
/ˈmaʊði/
 
/ˈmaʊθi/,
 
/ˈmaʊði/
(informal, disapproving)
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  1. used to describe a person who talks a lot, sometimes expressing their opinions strongly and in a rude way
    • I know she can be mouthy and annoying at times but she's a really good friend who'll always stand by you.
    Topics Opinion and argumentc2, Personal qualitiesc2
See mouthy in the Oxford Advanced American Dictionary
trait
noun
 
 
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