not open (one's) mouth
not open (one's) mouth
To be completely silent; to remain discreet (about something); to not tell anyone (about something). All the while our teacher was shouting at us, we didn't open our mouths. Don't open your mouth about this! I would die of embarrassment if anyone were to find out.
See also: mouth, not, open
Farlex Dictionary of Idioms.
not open one's mouth
and not utter a wordFig. not to say anything at all; not to tell something (to anyone). Don't worry, I'll keep your secret. I won't even open my mouth. Have no fear. I won't utter a word.
See also: mouth, not, open
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
not open one's mouth
Also, shut one's mouth; not say or utter a word . Be silent, repress one's feelings or opinions, keep a secret. For example, Don't worry, I'm not going to open my mouth on this issue, or She promised not to say a word about it to anyone. Also see hold one's tongue; keep one's mouth shut.
See also: mouth, not, open
The American Heritage® Dictionary of Idioms by Christine Ammer.
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
Farlex Partner Idioms Dictionary
- not open mouth
- not open one's mouth
- open your mouth
- open the way for (one)
- open house
- out in the open
- burst open
- an open book, he/she is (like an)
- be an open book
- throw open