I'mma knock his head off, dumping the lead off
I'mma pull his cap like he taking the tag off

from Lil B – Battery Acid Lyrics on Rap Genius

Meaning

He’s putting the cap back with the gun like he’s taking the tag off. When the tag is being taken off, you’re entitling yourself to something new you paid for. Lil B’s gun play is so refreshing and complex because he worked for it, like he earned it, the same way his victim earned his little pathetic snap back. Don’t worry, he’s dead now.

To help improve the meaning of these lyrics, visit “Battery Acid” by Lil B Lyrics and leave a comment on the lyrics box