What is the word "midi"

You may be asking Mimi. Mi Fei's original name was Fu (Fu Ersheng), later changed to Fu, and his surname was Mi or Qian. At that time, it was called Haiyue Waishi, also known as Xiong and Huo Zheng descendants. Calligrapher, painter and painting theorist in Northern Song Dynasty, together with Cai Xiang, Su Shi and Huang Tingjian, are also called "Song Sijia". Calligraphy and painting are unique, creating a "Midian landscape". He has a strange personality and crazy behavior. When he meets a stone, he calls him "brother" and worships him, so he is called "Mi Dian".