That is, a daughter's eight-character collision with her father may kill her father. It's a superstition to tell fortune. Never take it seriously! It means that it has a bad influence on the father's fate, and it may be because it is bad for his father. For example, his father may die of illness, and then he will be blamed for it!
It's all superstition, and anything that overlooks the father and mother is superstitious. To kill his father means that this person is hard to kill his father, and then his father is in poor health until one day his father dies, that's all. It's all nonsense.