The code words circulated among tomb robbers are just like bandits in the mountains. They cannot directly say that they killed people and set fires when talking to each other. They all have a set of argot words. For example, "Zongzi" means that the corpse in the tomb is relatively well preserved. There are no rotting ancient corpses. "Big Zongzi" refers to unclean things such as zombies and evil spirits. If you encounter such unclean things, you should shout "touched the big zongzi" to inform your friends. In addition, "dry rice dumplings" refer to ancient corpses with only a pile of bones left, and "meat rice dumplings" refer to the corpses containing many valuable things.