The original meaning is boarding food. Refers to the maid-in-waiting and maid-in-waiting, or eunuch and maid-in-waiting become "husband and wife" and provide meals. This is the abnormal phenomenon that maids and eunuchs have been imprisoned in the court for a long time, unable to live a normal family life and complaining about boredom. From the Han Dynasty to the Ming Dynasty, historical books and records emerged one after another. Hanshu. Spouse's offspring. "The Biography of Filial Piety Zhao Lie": "Servants, Daofang and Zhang abandoned it, so Zhao's princes and ministers are all in the guest house, such as Wang Wei and Zang Yi. All of them are called Gong (Cao Gong) knowing his son, and they belonged to Zhonggong before. In order to learn the history of things, they learned the poem and awarded it to the queen. The house and the palace are relative. " Yan Shigu quoted Ying Shao as saying: "Imperial secretaries are jealous of each other because they eat for the couple's names." Shen Ming Telford's "Wild quilt, internal supervision of food": "Today, many people cherish their wives, and some make friends with prostitutes, so they marry women. As for the matching imperial secretary, there is no one else. All the vegetables in the palace city, rich in silk, are all borrowed, and the cost is not subsidized. However, they are all in the palace, complaining about boredom, quenching thirst, and the next move ... According to the cooperation of the ladies-in-waiting, starting from the opposite side of the food in the Han Dynasty, the vegetable farmers are still the same today. When Emperor Wu was in power, Queen Chen was spoiled, which made the witch put on men's clothes and live with the queen, loving as husband and wife. When I heard about poor governance, I called it adultery. After the abolition, I am in charge of the palace. " And "The Warden and the Swimmer": "Your waiter has a straight room, but Meiere, Gan Qing and other palaces dare not set up a kitchen, so they move it into the outer room and cook with charcoal. Only male and female servants have their own rooms to cook for themselves. Your generation is reluctant to give it, and it is a good thing to return it. " Qing Xu's Biography of Filial Piety: "Guo Ming is always good, so Xia Guoxiang castrated pasta." The second volume of Suiyuan Poetry quotes the words of Nanhan Palace, the ruler of Luotian: "Don't blame the imperial court for boasting about food, but pay more attention to clothes." According to the Records of the Ten Kingdoms in the Spring and Autumn Period, "Liu Li stipulates that the champion must be imprisoned first."