The word Laojiu first came from the Yuan Dynasty. In order to consolidate their rule, the rulers at that time divided people into ten classes according to their occupations: the first class was officials, the second class was officials, the third class was monks, the fourth class was Taoists, the fifth class was doctors, the sixth class was workers, and the seventh class was hunters. , the eighth grade is the common people, the ninth grade is the Confucian, and the tenth grade is the beggar. Confucianism is a scholar, ranking ninth.

1. In the Peking Opera "Taking Tiger Mountain by Wisdom", the reconnaissance hero Yang Zirong broke into Weihu Mountain and won the trust of the bandit's leader mountain eagle after a battle of wits with tigers, pictures and fluent answers. Because there are "eight golden steels" in front of the carved mountain tent, Yang Zirong was named "Lao Jiu". When the mountain eagle persuaded Yang Zirong to stay, he shouted "Laojiu can't leave" - ??this sentence became a famous saying.

2. The "Cultural Revolution" took class struggle as the key link, and the objects of the struggle were the landowners, the rich, the rebels, the bad, the right, the traitors, the spies, the capitalist roaders, and the intellectuals. Intellectuals ranked ninth among the targets of struggle and transformation, so they were often preceded by the word "stinky" and called "Smelly Laojiu".