The origin of this expression can be traced back to a game in which players earn gold coins or other in-game currency by cooking. With the popularity of this game, cooking has gradually evolved into a network term to describe a person's hard work and active earning. In online chat, social media and other occasions, people often use cooking to express their appreciation or encouragement for their hard work or that of others. To some extent, the use of this kind of network language reflects the society's emphasis on hard work and economic income.