The origin of this nickname may be that Wang Jiulong often calls his wife "our milk" in performances. This kind of address is both interesting and kind, which is in line with Wang Jiulong's humorous performance style. At the same time, the name "Our Milk" is full of love and respect for his wife, which shows the happiness and joy of Wang Jiulong's family life.
In a word, "Zannai" is an intimate title between Wang Jiulong and his wife, which not only embodies Wang Jiulong's humorous style, but also expresses his love and respect for his wife.