Huang Chao Shame Pill is a kind of meatball originated from Zaozhuang, Shandong Province. Chefs call it "shy meatballs" and diners call it "free and unfettered meatballs" and "fairy meatballs". They called it "shy meatballs" because this dish was the size of an orange when it was first cooked, and it gradually shrunk to the size of an egg yolk after being put on the plate, just like a girl was shy, so it was named "shy meatballs".