LeBron was asking for his son back, and Al G. Rhythm was pushing back telling LeBron he can’t just get his way this time, and says:

I am the king of this domain. I’m not your coach. Now, the only way you’re getting your son back is if you and I play a little game called basketball.

I don’t know if that was an intentional joke about LeBron’s reputation with coaches, but I like to think it was.