The meaning of a cat urinating against a person:

1. Estrus: This happens when a cat is in estrus. The owner can take the cat to breed or neuter it.

2. Sickness: After a cat is sick, it may tell its owner by urinating that it needs to be taken to the hospital for examination in order to attract the owner's attention.

3. Revenge: The cat may be angry and will retaliate by urinating.

4. Marking the territory: The cat may be marking the territory, and the owner should stop it in time.