Qin Xiao Xian Golden Needle Mushroom Dipping Sauce is an Internet catchphrase originating from the De Yun She comedian Qin Xiao Xian. Golden needle mushrooms are a common hot pot ingredient, and in some hot pot restaurants, they are made into vegetable packets and placed in a bowl with chili sauce for dipping. The phrase "four days and four nights of enoki mushroom dipping sauce" is used to describe a kind of extreme endurance, implying patience and perseverance in order to reach the goal of solving a problem after a long period of waiting or hardship.