big mouth

慣用表現

(idiomatic) The mouth of someone who talks too much, especially by making exaggerated claims or by inappropriately revealing information.

日本語の意味

おしゃべりで、しばしば誇張して話したり、不必要に情報を漏らす人物を指す（隠喩的表現）

His big mouth ruined the surprise party.

彼のおしゃべりのせいでサプライズパーティーは台無しになった。

意味（1）

(idiomatic) The mouth of someone who talks too much, especially by making exaggerated claims or by inappropriately revealing information.

Shut your big mouth or I'll shut it for you.

意味（2）

(idiomatic) A person who talks too much, especially by making exaggerated claims or by inappropriately revealing information.

Shut up, big mouth!

big mouths

（ plural ）