Song meaning of Venom by Eminem

Ah, Eminem is back with another venomous track and this time he's not holding back. He starts by saying that the world can give you a raw deal and make you want to scream "piss off" and "screw you". Yeah, we all know that feeling, right? Then he goes on to compare himself to Edgar Allan Poe and mentions how he feels like his skeleton is melting...wait, what? Is he high? And what's with the elephant manure and Kahlúa reference? Is this a foodie rap? But he quickly switches gears and starts talking about being a devil and knocking on the doors of hell. I think he may have taken the Devil's Rejects movie a little too seriously. And let's not forget his obsession with Venom from Spider-Man, which he takes to a whole new level by actually becoming a symbiote himself. Maybe he should have stuck with rapping about his love for his daughter, because this is just too savage for me to handle.