What does the dung beetle mean by jumping into the cesspit?

It means smelly, which can be said to be a new two-part allegorical saying.

This sentence was originally not in the two-part allegorical saying, but somehow it became popular on the Internet. Perhaps this is the charm of two-part allegorical sayings.

Baidu has 90,000 words, but there is no two-part allegorical saying of "dung beetles". If you edit it, you might as well edit it as "dung beetles fell into the cesspit and smelled the same" or "dung beetles fell into the cesspit and the smell was even worse". These are all funny self-made allegorical sayings.