when he says let my nina sing he is talking about killing himself with his 9mm pistol and at the end of the song you hear the sound of the gun. the end of the 1st verse : "yo im tired of waitin slide the blade across it now" refers to the same thing. The reason he wants to kill himself is stated in the other parts of the song. the way i understand it is that we work our fingers to the bone for generations and we get no benefit, so he wants to kill himself.
when he says let my nina sing he is talking about killing himself with his 9mm pistol and at the end of the song you hear the sound of the gun. the end of the 1st verse : "yo im tired of waitin slide the blade across it now" refers to the same thing. The reason he wants to kill himself is stated in the other parts of the song. the way i understand it is that we work our fingers to the bone for generations and we get no benefit, so he wants to kill himself.