What does "shaohuoguo" mean in Changde Hanshou?

The fire-burning man picking up the ashes, also known as climbing the ashes, is a word that describes incest, and it specifically refers to the incest that occurs between a father-in-law and his daughter-in-law. There are many stories and legends about the origin of the word "grasping". I personally think the interesting one is about Wang Anshi. The story goes that one time Wang Anshi walked through his daughter-in-law's room and saw her sleeping on a bed with a transparent gauze curtain. His eyeballs couldn't help but shine. Wang Anshi was a poet after all, so he wrote on the dusty wall: "There is a pipa in the satin tent, and I want to play it." After writing, he hid aside to observe his daughter-in-law. The daughter-in-law saw her father-in-law sneaking around outside, so she came out to see what her father-in-law wrote on the wall. When she saw the words her father-in-law left behind, she immediately understood what they meant, so she added a sentence after her father-in-law's poem: " I would like to lend my father-in-law a piece of music to keep the feng shui in my house." Wang Anshi was secretly happy after seeing his daughter-in-law's words. Unexpectedly, his son appeared at this time, so he quickly wiped the writing on the wall with his sleeves. The son was surprised and asked his father what he was doing. Wang Anshi said he was removing ashes. Experts also verified that the term "picking off ashes" did not come from Wang Anshi, but from the great scholar Su Dongpo, but the plot of the story is similar.