Another name for Golden Corral. The name Golden Trough is a nod to the restaurant's long open food bar and the animalistic nature of feeding on a large pile of mediocre food with dozens of other members of your species. The nickname is not always intended to be derogatory, sometimes it's a just a sign of self awareness.
D: You free for dinner tonight?
J: Sure. We can do golden trough if you want...
D: Awesome!