What's the name of the person who tells jokes to Emperor Wu of Han Dynasty?

Dong Fangshuo. (Date of birth and death is unknown), whose real name is Zhang, whose word is Man Qian, was born in Yuci County, Plain County of the Western Han Dynasty (now Lingxian County, Dezhou City, Shandong Province). A famous writer in the Western Han Dynasty. Emperor Wu of the Han Dynasty acceded to the throne and recruited wise men. I wrote a letter of recommendation and worshipped him as a lang. Later, he served as a regular assistant minister and doctor in Taizhong. He is humorous, witty and wise, and often laughs and laughs in front of Emperor Wu. He once said that political gains and losses, Chen Nong's plan, fight for a strong country, but the emperor at that time always regarded him as a superior and did not value him.