What do you mean, "single at noon, single at noon, not the boss but the third"?

This is a common saying, which means that when they are alone, they can only fight alone, but if they are together, they are not just interacting and cooperating, but competing. Among them, "eldest" refers to the eldest son in the family, and "third" refers to the third child in the family, usually the youngest child. This sentence also implies that there is some kind of competition between Woods You Mao's four children. If they are together, they may compare and compete with each other instead of working together.