open (one's) mouth

(redirected from opened my 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 ?
I opened my mouth wide, and my lungs saturated themselves with fresh particles.
was what he appeared to be asking; whereupon ,I opened my mouth (anything rather than stand there to no purpose at all
Smarting with pain, for I was a round baby, with a nicely stretched, tight skin, and dreadfully hurt in my feelings, I opened my mouth to shriek in earnest, when my father's clear whisper fell on my ear, each word distinct and not to be misunderstood, his eyes as before gazing meditatively into space, and his lips hardly moving, "Elizabeth, wenn du schreist, kneife ich dich bis du platzt.
Well I never forgot what he said, and I never opened my mouth again when he cut my hair.
After the eighth or ninth time hearing this, I opened my mouth and blurted, "Well, as a matter of fact, Duncan, I do have a dick--at least that's what it says on my birth certificate--and I still don't agree with you
Once I approached him and opened my mouth to speak, I burped right in his face.
Every time I opened my mouth for air, a wave would go over me.
I had just opened my mouth to ask, "Where did you pass out last night?