Dog urine moss is not a good word by name. Mushrooms urinated by dogs are not good things to think about, and because of the growing environment, they are always compared to people with low status when swearing. They are from a bad family and are not very good themselves. In fact, this sentence comes from our country's two-part allegorical saying. Dog urine on the golden palace-dog urine in a good place and in a sewer-can't see the sun. Dog urine moss in two-part allegorical sayings is also a very unpleasant thing, so swearing with dog urine moss is an unpleasant person. So swearing, a scholar can't use swearing, and uneducated people won't be angry if they don't understand it.