Dictionary explanation: sea dragon king. Legend has it that there are many jewels in the Dragon Palace because they are used to describe extremely rich people. Xuanhe Pu Shu Qian Liu: "(Wu Yueguo, Qian Liu) ordered thirteen counties to spend forty years cultivating Zhongzhou tribute, with rich scenery and extravagant clans. The slang of Zhejiang people is' Dragon King', and the word is rich. " Qing Hao Di's Popular Compilation of Birds and Fish: "There is still a saying in Zhejiang today,' Does the Dragon King cherish it?' "