Question about a line from Requiem For A Dream

In Requiem For A Dream, when Harry finds out that his mother has been taking amphetamine diet pills, he frantically asks, “You’re makin’ a croaker for speed, ain’t ya?” Slightly later in the conversation he says, “I am tellin’ you, that croaker’s no good!”

What is this supposed to mean? Googling about it just seems to bring up quotes from this movie.

As an aside, that was definitely Jared Leto’s best role, and for someone who is not actually a Jewish kid from New York, he played one really well. I think he nailed the accent.

I can’t help you with your question, but I do have something you may find entertaining. Toy Story Requiem.

But yeah, I love that movie, although it isn’t one I like to watch multiple times. Too depressing, especially the last scene.

Croaker is slang for a doctor who writes prescriptions for drug addicts.

I found this online: “William S. Burroughs called these narcotic-prescription-writing doctors ‘croakers.’” From here.