Expressão da música Survival do Eminem

Abaixo colei um trecho da letra tirada do site http://rapgenius.com/Eminem-survival-lyrics, eu gostaria de saber qual o significado dessa frase a seguir: "I'm hynping 'em up ... and if there should ever come a time where my life's in a rut...Me for bowing out I ain't taking a bow..."

Like G-Unit without the hyphen, I'm hyping 'em up
And if there should ever come a time where my life's in a rut
And I look like I might just give up, eh, might've mistook
Me for bowing out I ain't taking a bow, I'm stabbing myself
With a fucking knife in the gut, while I'm wiping my butt