I have an uncle who keeps slagging me off what can I do about this? As I have had enough.

Slagging you off? What is the uncle doing that is upsetting you?

Being insulted or criticized is not a criminal act. Neither is it a civil tort unless there is a lot more to it.

P.S. this is an international site so please be careful; using slang terms that might not be known world wide.

P.P.S. ANY question on law needs to include your general locale as laws vary by area.