Or the soon to be slaughtered chickens who sold drugs in the coup
The comparison here is between chickens and gangsters.
Chickens are raised in a coup, and then are butchered. Gangsters grow up in the projects and often die from gang violence.
It is also a double entendre for Coupe cars, which are frequently owned by drug dealers in the projects.
To help improve the meaning of these lyrics, visit "Gangster Disciple, Chicago" by Nate Levin 18 and leave a comment on the lyrics box