Naftor - Naftor is what you call someone if they're so good, you want

Naftor is what you call someone if they're so good, you want to punch them. But if you’re not good, and you say it, you’re a joke.

My dad called me Naftor because I beat him at chess and then ate 4 cookies.

My friend said I was Naftor because I jumped over a car and still passed the test.

I called my dog Naftor, and he barked at me and ran away.