Screamin' that shit about the Squab Mob
Talkin' big shit about the South Park
Said he's gonna stop me
Pissed off cause I'm down with the 5th Ward posse

from Geto Boys – Another Nigger in the Morgue Lyrics on Rap Genius

Meaning

South Park and 5th Ward are both ghettos in Houston, and the Squab Mob and the aforementioned south park and the 5th ward posse are various disagreeing gangs in Houston (at the time)

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