及瓜而代

Explanation: And: to. Sent to take over next year, when ripe melon. Refers to the term of office expires a successor by others. 　　Source: "Zuo Zhuang eight" Qihou make even said to the father of Shu Kwai Venturi tube. Sometimes to the melon, said, 'and substituting melon. '" 　　Examples: ~, Lord of the pro-Hsu also. (Ming Feng Meng, "Eastern Zhou Zhi" Fourteenth back)