There are five explanations for the meaning of clown, as follows:

1. A clown in a traditional opera or a person who performs antics in acrobatics.

2. Metaphor is not solemn, good at having fun.

3. refers to a villain, a small and ugly person.

4. Humble people.

5. Use it to show modesty.

Source:

1. How ugly and dark these sneaky clowns are in Jun Qing's Soul of Sin! "

2. Lu Xun's "quasi-romance and ugliness" In short, his status is higher than that of a clown, but his character is worse than that of a clown. "

3. The second episode of A Dream of Red Mansions: "Jia Mu deeply loves one who is a dutiful son and the other a clown.