Why did Deng fall and expand?

The reason why Deng Meng is swollen is that blogger Deng Feng's cat MengMeng is swollen. According to relevant information, on July 6th, 2022, blogger Deng Feng posted a video of his pet cat MengMeng falling from a tree, and the whole thing swelled up the next day. After the video became popular, netizens often called Deng Weimeng swollen. It is understood that this cat named MengMeng is an orange cat.