That's how fuckin' lighter you feel, now you still wanna grill?

from Eminem – Ridaz Lyrics on Rap Genius

Meaning

When you put a lighter in your hand, you leave a bit of the lighter out from your hand so when you hit someone, they are hurt more, because you basically hit them with your hand and the lighter at the same time.
Later, Em’s asking if the guy who got hit still wants to laugh/smile (grill).

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