Dafaq does egg me mean?

It means “to tempt” in simpler terms. He’s telling him not to tempt him

To tempt is not quite right
The actual meaning is probably closer to encouraging/urging someone to go further in doing something
For example you might egg someone on in a fight

Yea ur right but it depends on the context. In the example you used, that definition completely works. However, in the context of the chapter, he was telling him not to tempt him into starting something that he said he wouldn’t do. Maybe I’m thinking too hard, but I was pretty sure I was right