Cao County, Heze, Shandong Province, is an online buzzword. This refers to Cao County, Heze City, Shandong Province, which became popular because a man who claimed to be a native of Cao County often called "Niu *666 my baby" in Cao County, Heze City, Shandong Province.
A Tik Tok network celebrity named "Dashuo" described the video content of the man shouting "Niu *666 my baby in Cao Xian County, Heze, Shandong Province". The man's move caused many video creators to follow suit, and then the creators turned their creative focus to ridicule Cao County, and netizens also joined in.