Meaning of the word "button your lip" in English

What does "button your lip" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

button your lip

US /ˈbʌt.ən jʊər lɪp/
UK /ˈbʌt.ən jʊər lɪp/
"button your lip" picture

Idiom

1.

to stop talking or to keep quiet

Example:
The teacher told the noisy students to button their lip.
I had to button my lip to avoid arguing with him.
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