I'm what's left of the lithium in Cobain's cranium
Kurt Cobain was the frontman of the grunge music group, Nirvana, whom killed himself using a shotgun. Lithium is a metal that is commonly used to treat bi-polar disorder which Kurt Cobain had. It is possible that MC Chris was referencing Kurt’s Bipolar disorder or Nirvana’s song “Lithium”.
To help improve the meaning of these lyrics, visit "Mc chris ownz" by MC Chris Lyrics and leave a comment on the lyrics box