What is 'chopping two teeth to close the tongue'?

A difficult proverb to understand has made generations of Vietnamese people search for the correct explanation.

Besides proverbs and folk songs that anyone can understand immediately, the Vietnamese folk treasure also has many sentences that make readers stop and think. Each sentence contains a profound meaning, reflecting the wisdom and life experience of our ancestors.

Challenge to decode this proverb.

What do you think is the best explanation for this proverb? Leave your answer in the comments section below.

GP

Source: https://vtcnews.vn/bam-hai-cai-rang-dong-trang-cai-luoi-la-gi-ar985269.html