It is a metaphor that related things react to each other, like a tiger roaring and then a dragon roaring; it can describe a person's success; it can also describe a song that is majestic and loud.

Tiger roars and dragon roars, a Chinese idiom, the pinyin is hǔ xiào lóng yín, which means like the tiger is roaring and the dragon is roaring. It is a metaphor that related things interact with each other, and it also describes people's prosperity. From "Guitian Fu".

Tiger's roar, dragons roar, cranes chirp and warblers chirp. (Chapter 60 of "Journey to the West" by Wu Cheng'en in the Ming Dynasty) "The Story of Two Pearls: Fengjian Tongshen" by Shen Jing in the Ming Dynasty: "Rituals and music bring harmony, and I hope to inspire them in the place where tigers roar and dragons sing." Hong Xiuquan of the Taiping Heavenly Kingdom " Sword Poetry": "Tiger roars and dragon sings the light of the world, how about peace and unification!"

Sima Yi is called the "Tombing Tiger" by the world, and Zhuge Liang is called the "Wolong". The name "Tiger Roars and Dragon Roar" comes from this. The superficial meaning of "Tiger Roar" represents the roar of Sima Yi, the tiger, and the extended meaning is that Sima Yi has made great achievements and dominated the world.

"Tomb Tiger" is a big hidden tiger. "Don't use a hidden tiger" also means that the tiger has fallen into peace. If this tiger does not eat people, it will be nothing. If it eats people, it will become a river of blood and a mountain of bones.

"Crouching Dragon" is a dragon that is entrenched and motionless. Do not use a hidden dragon. "Tomb" and "crouch" in "Tomb Tiger" and "Wolong" have similar meanings. They both have hidden meanings. The so-called tiger sits on the dragon's plate. Its usage is similar to "intertextuality".

Just like Pang Tong's "Feng Chu" and Jiang Wei's "Youlin" titles, "Chun" and "You" have the same meaning, both meaning "tender". Why are Pang Tong and Jiang Wei said to be relatively "young"? Because they didn't make any waves.