"This a song wit Wayne, so you know it's 'gon melt" I think refers to how Lil' Wayne and Kanye are rated by many to be the two best rappers at the moment and Kanye is saying that with the two together you know it's going to be good.
"But you ain't finna murder me like errbody else" I think Kanye's saying Lil' Wayne isn't going to out do him lyrically like he does to everyone else he raps with.
"This a song wit Wayne, so you know it's 'gon melt" I think refers to how Lil' Wayne and Kanye are rated by many to be the two best rappers at the moment and Kanye is saying that with the two together you know it's going to be good.
"But you ain't finna murder me like errbody else" I think Kanye's saying Lil' Wayne isn't going to out do him lyrically like he does to everyone else he raps with.