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Discover LudwigThe phrase "a smart mouth" is correct and usable in written English.
It is typically used to describe someone who speaks in a cheeky or sarcastic manner, often in a way that is clever but can be perceived as disrespectful.
Example: "She always has a smart mouth, making witty remarks that sometimes get her into trouble."
Alternatives: "a wise mouth" or "a sassy mouth".
Exact(16)
"He had a smart mouth.
"Amya says 'you guys.' And she has a smart mouth.
He was a joker and he had a smart mouth, ready to dish out trash talk.
She had what the Nuns in school called a smart mouth.
Her helper that afternoon was Donna Prisk, a Bayonne native with a smart mouth and a blond ponytail tied in a black Scrunchie.
Betty's maternal credit rating takes another dramatic hit as she hurls out her improbable intention to break her daughter's arm after Sally arrives home with a smart mouth and a nose that isn't, in fact, broken.
Similar(44)
Ellen Burstyn and Mr. Sorvino play her parents; Debi Mazar plays a smart-mouth hairstylist friend, and Peter Firth is an arrogant and sad professor.
That he would take an interest in me — Irish Catholic, a Westerner, 30 years his junior, too much of a smart-mouth for his refined style — was a mystery for many years.
Back in the day, he was known for his vitriol, sideswiping his contemporaries, playing with journalists, alienating all and sundry in interviews, a real smart mouth.
Bender's quick wit and smart mouth make him a boon companion on this oddball adventure.
Since Mark is a friend I resist the urge to smart mouth him, but what my non-lawyer mind gleans after his obligatory preface is that the Good lawyer -- meaning decent as opposed to sharp -- operates as a mediator and avoids dropping automatically into an advocacy role.
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CEO of Professional Science Editing for Scientists @ prosciediting.com