In wine culture, pouring cups is usually a ceremony to show respect or gratitude. When a host or elder pours wine for a guest or a younger generation, he sometimes hangs his glass upside down on the table to show his respect and gratitude to the guest.

There are some differences in the expression of this custom between the north and the south. In the south, it is usually the host or elder who pours wine for the guests or the younger generation, while in the north, the custom of pouring glasses will not only appear in pouring wine, but also in drinking etiquette such as clinking glasses and toasting. In addition, the meaning of upside-down wine glasses is different in southern China. In addition to showing respect and gratitude, there is also the meaning of "no regrets", which means that you are willing to give everything for your guests without asking for anything in return.