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Have a big mouth Meaning in English

expression

HAV-uh big MOWTH
hav-uh big MOWTH

Definition

To often talk too much and reveal secrets or private information about others that should be kept confidential.

Usage & Nuances

This is an informal, sometimes slightly negative phrase. It is used to warn or complain about people who can't keep secrets. Common in both joking and critical contexts. Not usually used as a serious insult.

Example Sentences

Don't tell Sarah, she has a big mouth.

basic

He has a big mouth and tells everyone's secrets.

basic

If you have a big mouth, people might stop trusting you.

basic

Oops, I have a big mouth—I shouldn’t have said that!

natural

You really have a big mouth sometimes, you know?

natural

If you keep having such a big mouth, no one will invite you to their parties.

natural