250 has something to do with that historical figure.

People in China often call a person who doesn't speak seriously, does things seriously, does things casually and makes a fool of himself or "250". According to research, there are roughly the following possible sources:

1 originated from the story of the Warring States Period. During the Warring States Period, there was a lobbyist named Su Qin, who was impressed by the Six Kingdoms. He was very powerful at that time, but he also made many enemies. Later, he was finally killed in Qi State. The King of Qi was very angry and wanted to avenge Su Qin, but he couldn't find the murderer at the moment, so he came up with a plan to cut off Tai Su's head from his body and hang it on the city gate, and a notice was posted next to it, which read: "Su Qin was a spy, and he killed him with 1,200 gold. I hope to get a reward. " As soon as the poster was put up, four people claimed to have killed Su Qin themselves. Qi Wang said: "This is not allowed to be faked!" All four insisted that they did it. The king of Qi said, "One thousand two hundred gold, how much do you four get each?" The four people said in unison: "One person is 250." The king of Qi was furious and said, "Somebody, push these four' 250s' out and behead them!" The word "250" was handed down in this way.

2. Stories from the Tang Dynasty. The "mayor" scene in Chang 'an in the Tang Dynasty was very powerful, and there was a huge ceremonial team when going on patrol. The official name of the small official escorting the way in front is "Drinking Wu Bai", with a long pole in his hand, driving the pioneers. Later, Wu Bai was added as two people, but Chang 'an people did not call them Er Wu Bai's. But they are called 500, so everyone is called 250, and because everyone has a long pole in his hand, he is also called Er Ganzi. This shows that Chang 'an people dislike officials who abuse power for personal gain. Today, two hundred and fifty and two Ganzi have become synonymous with reckless, rude and rude people.

3. From folklore. Once upon a time, there was a scholar who forgot to eat and sleep and studied hard in order to gain fame, but he never won a prize in his life or even had a son. In his later years, the old scholar was finally disheartened and indifferent to fame and fortune. Instead, I was very satisfied with my son and added two talents. The scholar recalled the success or failure of his life and couldn't help feeling deeply, so he named his two sons: one was success and the other was failure. From then on, the scholar studied behind closed doors at home and lived happily. One day, the scholar told his wife, "I'm going to the market." You urge your second son to write at home. The eldest son writes 300, and the youngest son writes 200. " After the scholar came back from the fair, he asked his second son how to study hard at home. The old lady replied, "I wrote it, but it's not enough. It's more than enough. Both of them are 250! "

4, from the push to the nine. Pai Jiu is a gambling tool, which consists of two cards, namely "Baner" (four points) and "Wu Yao" (six points). These two cards together form ten points, which is called "shooting ten" in the gambling activities of pushing Pai Jiu. It is the smallest point in the ninth row, and anyone is bigger than it. It can't "eat" any cards, so later people used the word "Banerwu" (short for "He") to refer to those who can't do anything well and can't control anything. After a long time, I will call "two boards and five" "two hundred and fifty". In Hong Kong, it is also customarily called "Erwuzai".

A Chinese book in a middle school says that ancient people used silver in two parts. Generally speaking, 520 is an integer unit, wrapped in paper. At that time, 520 was a "letter" and 252 was a "half-sealed" silver. Because it was homophonic with "semi-crazy", people later called the madman "250".

6. Once upon a time, there was a fool whose family was in decline. One day, he went to sell a family heirloom, which said "sold 258 Liang". As a result, when he sold it, someone bargained with him. If he wanted it, he gave 250 taels and sold 250 taels of gold. Many people laughed at him for missing eight taels of gold and being an idiot. From then on, people called the confused person 250.

7. In modern times, it is said that some people learn the songs of the singer Wu Bai, but they can't learn them at all. Some people say that he is at most half a hundred.

8. "Medium-cooked" in Tengzhou dialect in Shandong province means "250". Here, fools or people who are not serious, careless and like to make a fool of themselves are called "semi-cooked" (pronounced "semi-floating").

9. It is said that everyone has a stupid index relative to IQ. The average person's stupid index is around 200, and it will rise to 250 if he is not careful, so he often makes some small mistakes in his daily life. The murderer's stupidity index is as high as 20 thousand, 200 thousand. ......