I'm coming through, thought you knew, fuck if you didn't, fuck you
Plutonium lore, what this is, what this for

from Death Grips – Thru the Walls Lyrics on Rap Genius

Meaning

He opens the song, and wants everyone to fucking know it. He is comparing is music to plutonium a powerful substance and lore to something passed on vocally then he questions why he has this and what is his purpose.

To help improve the meaning of these lyrics, visit “Thru the Walls” by Death Grips Lyrics and leave a comment on the lyrics box