In geomantic terminology, dog land is usually not defined in this way. It should be said that it is the geomantic position of the boundary spray head. Chinese mainland's Gouzi language is mostly in Chongqing, Sichuan. Dog means ass. This is not an indecent title in feng shui language. This describes that the terrain is a ravine between two mountains or one mountain has a concave, so water usually flows here. These places are usually washed areas. This is called the land of water shower. There will be no geomantic land on the ground where water is drenched on the head, and basically the disaster will come faster.
This is based on the name of the ditch to analyze what kind of feng shui terrain this is, unless this person says otherwise, there is no air available in the shower head.
Or you can send a local photo to see, which can explain it more clearly.