CATDOLL : What does a black cat with a broken tail mean?

The meaning of a black cat with a docked tail is not fixed. In some cultures, black cats are seen as symbols of mystery, luck, or supernatural powers, and docking the tail may be seen as a special mark or destiny. However, in other views, docking the tail may be caused by accident, disease, or human factors, and does not have a special meaning.

From a biological point of view, tail docking may be caused by genetic mutation, inbreeding or environmental factors.