Is now an image of a pot head that's just about to
Blow when he hit the microphone man you gotta

from Pro Era (Ft. Dyemond Lewis, Joey BADA$$, Kirk Knight & Nyck Caution) – School High Lyrics on Rap Genius

Meaning

Kirk, who used to just produce for Pro Era, is gonna blow up for his rapping skills.
Also, pothead, blow, hit are all references to smoking weed.

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