I told these stupid hoes when I come back I’ma set this bitch on fire!
And this time I don't mean I'mma pour gasoline on some chick and light her

from Bad Meets Evil (Ft. Liz Rodriguez) – Echo Lyrics on Rap Genius

Meaning

“Set this bitch on fire” is a common idiom for getting the place absolutely out of control — but Eminem no longer means this metaphorically, he is literally going to get some gasoline and set the rap game on fire (which will probably also get the place out of control)

He is saying that he is gonna shut the place down and not metaphorically but literally. the line “And this time I don’t mean ima pour gasoline on some chick and light her” is referring to Love The Way You Lie where he then says “….ima tie her to the bed and set this house on fire”

Em referencing his change in subject matter, before in the Marshall Mather LP days, if Em said something like that we would think he literally meant he would set a bitch on fire, but he’s changed since then and isnt you know….that crazy anymore

To help improve the meaning of these lyrics, visit “Echo” by Bad Meets Evil (Ft. Liz Rodriguez) Lyrics and leave a comment on the lyrics box