I'm good for now

You're basically telling someone to go screw themselves because you're too full of your own greatness to care about their offer.

You're pretending you're too busy being awesome to take their offer, even though you're just lazy.

You're giving them the finger with your mouth, saying you're too full of yourself to even consider their offer.

You're acting like their offer is the worst thing ever, even though you're just too proud to accept it.

You're telling them to go do something else because you're too busy being the best version of yourself to take their offer.

You're basically telling them to go to hell because you're too full of yourself to even consider their offer.