What is the relationship between the famous Dongpo meat and Su Shi?

Su Shi's life is bumpy and ups and downs, just like a seesaw. Song Shenzong Xining ten years, Su Shi went to Xuzhou magistrate. He was only the magistrate for more than three months, and the Yellow River was cut off near Yizhou. In August of that year, the Yellow River surrounded Xuzhou City. Su Shi took the lead in setting an example and mobilizing the people of the whole city to participate in flood fighting. People were very happy after the flood receded. The people spontaneously slaughtered pigs and sheep, and they had to thank Su Shi for carrying them into the house. Su Shi could not bear to refuse. After accepting it, I personally instructed my family to cook braised pork and gave it back to the people. Everyone was amazed after eating it, and they all called it "back to meat". Later, "back meat" spread all over Xuzhou.