I believe that many people have given themselves a lot of nicknames when they are young, similar to "I am qi tian da sheng so-and-so" and the like, because when people are young, they will feel that after giving themselves a nickname, they can make themselves appear more powerful, and "making themselves look more powerful" is the eternal need of human beings.
In fact, this is indeed the case in history, basically every historical figure in different historical periods will give themselves a particularly powerful name, the most classic of which is naturally the "emperor" of Yingzheng, because "the third emperor of gonggao, the fifth emperor of Degai" has taken a title, which can make himself look very powerful.
Of course, more historical figures can not use the title of "emperor", such as the generals of the Three Kingdoms period, when they sign up for the number when fighting, they will not use "I am the general who is who", which is very undemeanorable, so they will use some unique exclusive titles, which can highlight personal characteristics and at the same time sound very prestigious.
Zhao Yun reported his name as "Changshan Zhao Zilong" when facing the enemy, Zhao Yun was eight feet long, his posture was extremely majestic, and his appearance was also very handsome, often wearing a silver helmet and riding a white horse, using a bright silver gun that was long and two, so that the word "handsome". Such a handsome Zhao Yun appeared on the battlefield, that was naturally the most beautiful boy on the entire battlefield, and when he said the phrase "I am Changshan Zhao Zilong", he brandished a silver spear and crossed the battlefield like a dragon, which was able to instantly cause panic among the soldiers.
In particular, Zhao Yun had reported his name several times, and he came and went freely on the battlefield, and several times he had crossed the millions of troops as if he had entered no man's land, but he had never been injured, and the casualties of his soldiers and soldiers were already countless, which made the prestige of "Changshan Zhao Zilong" even more sensational.
Zhang Fei's first self-registration number was when he was fighting Lü Bu in front of the Tiger Prison Pass, he slapped his horse forward and shouted at Lü Bu: "The three surnames of the family slaves are gone, and the Yan people Zhang Yide are here", the sound is like thunder, the eighteen road princes watching the battle are all shocked, especially Zhang Fei then fought with Lü Bu for fifty rounds, and can do no distinction between victory and defeat, and the usual so-called famous generals can not survive three moves under Lü Bu' hands, so the "Yan people Zhang Yide" is famous all over the world.
This is not Zhang Fei's most brilliant battle, in the thirteenth year of Jian'an (208), Cao Cao personally led a large army to break Liu Bei, Zhang Fei led twenty soldiers to retreat from the enemy at Changshanpo in Dangyang County, he immediately shouted at the head of the bridge: "The Yan people Zhang Yide is here, who dares to come and die", Cao Cao's generals around him were frightened and fell to their horses and died, and Cao Cao himself immediately returned to the horse to withdraw, which shows the prestige of "Yan people Zhang Yide".
As the head of the "Five Tiger Generals of the Shu Han Dynasty", Guan Yu's name he reported during the battle was more unremarkable than Zhao Yun and Zhang Fei, but it sounded like he had infinite domineering spirit. Also in the thirteenth year of Jian'an, Cao Cao was defeated in Huarong Dao after the Battle of Chibi, and Guan Yu, who was waiting there, said: "Xiang Xiang, Guan Mou has been here for a long time", his name is such a mediocre "Guan Mou", but Cao Cao, who can shock the world, was instantly frightened like earth after hearing it.
The reason why people want to give themselves a very prestigious nickname in many cases is mainly to "make themselves sound very powerful", but in fact, whether it is "Changshan Zhao Zilong" or "Yanren Zhang Yide", or even "Guan Mou", the reason why these names sound powerful enough to be domineering enough is mainly because the people who call these names are powerful enough to be domineering enough.
References: Romance of the Three Kingdoms, Romance of the Three Kingdoms