"[bite|hold] {one's} tongue"의 정의 및 의미

What is the origin of the idiom "bite one's tongue" and when to use it?

The idiom "bite one's tongue" has its origins in the English language and dates back to at least the 16th century. The expression alludes to the literal act of biting down on one's own tongue to prevent oneself from speaking. It is commonly employed when someone wants to refrain from speaking their mind, opinions, or criticisms in order to maintain peace, avoid conflicts, or prevent hurting others' feelings.