no decir ni mu

USAGE NOTE
This idiom may be literally translated as "to not even make a moo."
no decir ni mu
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
1.
An idiom is a phrase with a meaning different from the literal meaning of the separate words that make it up (e.g., break a leg).
(idiom)
(to not say anything)
a. to not say a word
No dije ni mu porque no quería entrometerme en una pelea de enamorados.I didn't say a word because I didn't want to meddle in a lovers' quarrel.
b. to not breathe a word
An idiom is a phrase with a meaning different from the literal meaning of the separate words that make it up (e.g., break a leg).
(idiom)
Me prometiste que no le dirías ni mu a nadie. Has roto tu promesa.You promised you wouldn't breathe a word to anyone. You've broken your promise.
c. to not open one's mouth
An idiom is a phrase with a meaning different from the literal meaning of the separate words that make it up (e.g., break a leg).
(idiom)
¿Qué te pasa? No has dicho ni mu desde que te levantaste.What's wrong with you? You haven't opened your mouth since you got up.
d. to keep mum
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
(colloquial)
Regionalism used in the United Kingdom
(United Kingdom)
Te las das de valiente, pero cuando el jefe te regaña no dices ni mu.You like to make out you're brave, but when the boss tells you off, you keep mum.
e.
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
no direct translation
Rosa se casa la semana que viene. - ¿Ah, sí? Pues a mí no me ha dicho ni mu.Rosa is getting married next week. - Is that so? Well, it's the first I've heard of it.
Estamos enfadados con ellos. Se casaron y no nos dijeron ni mu.We're angry with them. They got married without telling us.
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