Detroit Bait Pile

A crack rock, or crack rocks, placed in a conspicuous place within the city limits of Detroit, with the intent of attracting a particular kind of prey.

You: Holy biden in a crack orgy, Dan! Is that a Detroit bait pile in your yard? I thought baiting in the Lower Peninsula was illegal!
Dan: Nothing's illegal in Detroit, dude. I printed over fifty thousand ballots last week and they're still asking for more.