open (one's) mouth

(redirected from open her mouth)

open (one's) mouth

To say something, especially that which is indiscreet, boorish, or meant to be a secret. Why did you have to open your mouth about my crush on Tommy? Why couldn't you just keep it between us? You've got to make sure that he never opens his mouth about what went on here today.
See also: mouth, open

open your (big) ˈmouth

(informal) say something when you should not: Why do you always have to open your big mouth? Can’t you just keep quiet sometimes?
See also: mouth, open
References in classic literature ?
In Cincinnati he became acquainted with the old aunt, and had found means to open her mouth.
Following her immediate treatment, her torn facial muscles contracted, Dinoire said she could only open her mouth about three-quarters of an inch and had to eat all her food pureed despite intense physical therapy.
About 50 youngsters, including a 12-year-old girl who could barely open her mouth since birth, are now grinning from ear to ear after the life-changing surgery.
Among the patients who have undergone surgery is 12-year-old Kseniya Gordeeva, who suffered jaw damage at birth and could barely open her mouth.
Around 50 youngsters, including a 12-year-old girl who could barely open her mouth since birth, are now grinning from ear to ear after the life-changing surgery.
Nine days later she was able to open her mouth without so much effort and can eat, laugh and talk to her friends normally.
Ruth can't open her mouth without declaiming, and the refugees she's shepherding aren't much more eloquent.
Phil on medicating a patient: ``It's regular-strength Tylenol: Here's what you do - open her mouth, grab a handful and throw it at her.
Then the toddler gently ordered her mum to open her mouth before squirting the Ventolin inhaler once again.
She may have a magnetic presence in music videos, but ask her to open her mouth and emote and you've got the makings of a disaster.
Paul Dohi smiled at his pint-sized, limited English-speaking patient and, in Spanish, asked her to open her mouth.