Some gasoline,

from Domo Genesis & Alchemist (Ft. Tyler The Creator) – No Idols Lyrics on Rap Genius

Meaning

He spits fire, so gasoline is necessary!

Lighting gasoline causes explosions, which could be a reference to Tyler comparing his self and Domo to “two Taliban kids”, as they blew up the Twin Towers on 9/11, and are also suicide bombers.

TL;DR: They blow shit up.

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