I don't know if you are talking about the annual pet or the eternal pet. I haven't heard the expression "Wan Nianchong", and I don't know where you heard such words. Some geologists always use very illogical words to scare people. One of my clients had a rural feng shui master to help them look at the house, saying that their compass guide didn't point to the north, so low-level words also appeared. .
Simple year rush, such as Wu Jianian this year, the house sitting in the afternoon is the year rush, because the meridian rush. If there is an annual rush every year, then your house will rotate by itself 15 degrees every year, which is incredible unless your house is suspended in space.