Edema, interpreted as a disease in the dictionary, means "a lump in the chest" or "abdominal disease"; Extended as "rogue", "bad guy" and "villain". As for the origin of the word "rogue", Zhang Taiyan has textual research in the Interpretation of New Dialects, saying that it originated from Yuan Qu. "Today people call the wicked human skin, wrongly written as' riffraff', and also call fraud skinning, which is also vicious. This is close to today's meaning. Now people's so-called hooligans, if they insist on finding similar words, are hooligans or rogues. The word "rogue" in the history of China refers to "refugee" in a broad sense, not "rogue and local ruffian" in the modern sense, but actually refers to people other than "native, agricultural, industrial and commercial". Call them "lazy people", "attacking people", "idle people", "demoted people" and "belittling people". From Qin and Han Dynasties to Sui and Tang Dynasties, the names of hooligans can be roughly divided into three categories: one is all kinds of hooligans, the other is rangers, and the third is vagrants. In the Song Dynasty, hooligans were generally called "gangsters", and in the Yuan Dynasty there were "ruffians", "ruffians" and "rogues". In the Ming Dynasty, hooligans were called "bachelors". The Qing dynasty had today's "hooligans" and "local ruffians". At the end of the Qing Dynasty and the beginning of the Republic of China, the society was in rapid turmoil, natural disasters followed, and wars were frequent, and a large number of ruffians came into being. However, due to different regions, their names are different. Suzhou and Hangzhou call it "otter skin" and "small talk"; Beijingers are called "gangsters"; Jiangxi people are called "bonzi" and "cousins"; Cantonese people shout "indiscriminate" and "muddy feet"; Fujian people call it "running stick", and some people call it "riding a horse"; Shaanxi people are called "leisure"; As dialects, Hubei and Hunan like to use the word "rascal" most, such as "rascal", "rascal stick" and "rascal", which is called "lake rascal" for Hu Ba, "country rascal" for those who wander in the countryside, "street rascal" for those who do evil in the market, and even "literary rascal" for those who have no virtue. Generally speaking, it has three meanings: first, it is sociological, similar to the traditional "hooligans" in China, referring to a class of marginalized people, whose outstanding characteristics are immoral as morality and unruly as rules; The other is hooliganism in the cultural sense, whose outstanding characteristics are dance academy, cynicism and decadence; The third kind is hooligans in the linguistic sense, whose outstanding characteristics are immoral, glib and ruthless.