CP is a common abbreviation in network language, which comes from the abbreviation of "couple", meaning "a couple" or "collocation combination". On the Internet, CP has a wider meaning and is often used to describe a particularly good cooperative relationship between two people, such as star idols, animated characters and novel characters.

CP originated from Japanese animation culture at first, and then gradually became popular in Chinese mainland, Hong Kong and Taiwan. In network language, cooperative principle is widely used in various occasions. In novels, cartoons, TV plays and other literary works, the author often depicts the relationship between characters through communication and interaction. At this time, CP is used to describe the relationship between characters, such as: "They are simply the most beautiful CP in the book!" As an online buzzword, CP has become an important part of people's daily communication. It is not only an abbreviation to describe the tacit understanding between lovers and idol groups, but also a cultural symbol. Whether expressing love for idols or sharing stories of tacit understanding between friends, CP can make people feel the infinite charm of network culture.