Ya'll ain't even doing no justice to the league-ah

from Top 4 (Ft. Dub A, Einstein & Psyonik) – 2012 RapGenius Cypher Lyrics on Rap Genius

Meaning

Play on words using the fabled Justice League as material, implying that y'all (other rappers) aren’t doing justice (putting out good music) to the league (hip hop)

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