The meaning of this sentence is actually self-introduction, and it also has a certain deterrent effect. Zhao Yun often wins battles, and everyone else knows his name. His cry is still very useful.
Zhaoyun Zhao Zilong is actually a native of Hebei now, specifically in Zhengding and Changshan County (now Zhengding, Hebei Province).
The title of General Zhao Yunsheng is widely circulated among the people, and the earliest source is difficult to verify. Some scholars in the Ming and Qing Dynasties mentioned it in their personal works, but they did not directly say the word "ever-victorious general", but used words such as "invincible general" and "invincible general".
Extended data
In the novel Romance of the Three Kingdoms, Zhao Yun shouted a slogan every time he fought. Zhao Yun often shouts "I am Changshan Zhao Zilong!" ; Zhang Fei also shouted: "I am Zhang Yide, a king of hell, who dares to fight me to the death!" .
There is a passage in the Romance of the Three Kingdoms that "Zhao Yun rode alone as a savior", saying that Zhao Yun was brave and invincible when he entered the rescue of A Dou alone. Seven in and seven out of the enemy were killed, and more than fifty generals under Cao Cao were defeated. Cao Hong came to find out his name, and Zhao Yun roared in the millions of troops: "I am Zhao Zilong of Changshan!" The sound passed through the valley and stirred people's hearts. Cao Cao sighed: what a tiger will be!
References:
Baidu Encyclopedia-Zhao Yun
Xinhuanet-Zhengding is a good place with Zhao Zilong.