Why is it called "Su Kongtou"?

Suzhou people have a long-standing nickname called "Su Kongtou". "Su Kongtou": a metaphor for a person who is "strong on the outside but capable on the inside" who only cares about appearance but is empty on the inside. There is a saying in Wu proverb: "Su Kongtou, Hang Tietou". The name "Su Kongtou" is similar to the Yangzhou people's nickname "Yang Xuzi": one Su and one Yang, one Kong and one Xu, all exaggerate the flashy side of Jiangnan customs. The original meaning of "short" is to lie. Suzhou people make fake goods and like to quote false prices. Cheng Zhanlu, a writer of the Mandarin Duck and Butterfly School in Suzhou in modern times, had a profound insight into the vulnerability of "Su Kongtou". He was saddened and saddened by it, and he wrote the poem "Short-headed Pier" with great effort: "Short-headed and short-headed" comes from Suzhou. Suzhou is short, famous among all nine states. The clothes on the body are silk and the food in the mouth is oil. In fact, Ji and his family members could not afford to pay more than 18,000 yuan. When he went out, he wore a light fur coat and an angry horse, showing off his romantic style. When I first entered, I was timid, and my cotton womb had gone through several springs and autumns. The gold-plated box has a white copper lock, but the inside is just empty. Short position, short position, until when will you stop? Another classic joke from ancient times: When a man first went to Suzhou, he probably taught him: "The people of Wu are used to short-selling. If they go to buy something, they ask for two taels and have to give back one tael. Even when talking to people, they can only say a few words. Listen to this. "When he arrived in Suzhou, he first used the method of buying goods and it proved fruitful. Later, I met a person and asked his surname. He replied: "My surname is Lu." The person said: "He must be the third old official." He also asked: "How many rooms are there?" He said: "Five rooms." The person said: " It turns out there are two rooms for one person." He asked again, "Who else is in the house?" He said, "There is only one room."