Schmeck

The transistor radio swiped from an East 39th Street brownstone could be traded on a Harlem street corner for a "nickel's worth of schmeck" (a $5 bag of heroin).

[…] how he could help to flood the city with a deluge of drugs to take the place of the supply that had been confiscated by the police. Plenty for himself, too, he would have. Plenty of schmeck to keep himself charged for a long time.