One is dog meat, the other is rabbit meat and the other is bird meat. These three dishes may not have any specific meaning on the surface, but it was Liu Bowen who saw the hidden meaning. Because he knew Zhu Yuanzhang. He knew that Zhu Yuanzhang always thought that nothing he did would be seen by others, but people who just thought this way were often easy to see through.
The meaning of these three courses is that Liu Bowen saw at a glance that Zhu Yuanzhang wanted to kill his minister, found it in advance, and told the ministers around him to save them and themselves from being killed. Although there is no such passage in real history, it also reflects the cruelty of Zhu Yuanzhang after he came to power.