7y is an abbreviation of network language, which usually stands for "Seven Fish". In China, especially in the south, people like to eat crucian carp. And "seven fish" refers to one of the crucian carp. Therefore, when eating crucian carp, people will use 7y to represent the "seven fish" in the network.

In addition to food culture, 7y is also a commonly used abbreviation in network language. For example, in online games, in order to express a certain emotion or idea, players may enter "7y" in the chat box to represent that they are eating crucian carp. In the process of online communication, 7y has also become a very interesting expression.

Although the meaning of 7y looks simple, there are some cultural meanings behind it. Crucian carp is a very common food in southern China. And the wild seven fish is usually considered as a very delicious fish. Eating crucian carp with 7y also reflects China people's eating habits and love for food.