Mao is an online social language, which originated from Japanese culture. Among them, "Oni sauce" refers to "sister" and "Mao" is a transliteration of "cat" in Japanese. Therefore, "Mao with Oni sauce" can be understood as "sister cat". On various social platforms on the Internet, people use it to express their feelings, establish interactions, or use it as a title.

Sister Cat is a very common image in Japanese cultural fields such as animation and games. Therefore, in some related social groups, "Oni Sauce Hair" has also become a way to represent this cultural element. It gradually became popular in China network culture around 20 19, expressing the younger generation's love and admiration for this culture.

Apart from Mao, the changes and popularity of social language on the Internet have always been rapid. Like "Buddhist youth" and "poisoned chicken soup", they are all buzzwords on the Internet. This phenomenon also reflects the change of people's lifestyle and the diversification of expressing needs. In the future Internet world, the development of network language will have broader possibilities and innovative space.