punch palace
A "punch palace" is a venue such as a bar, club or nightclub that that has a reputation to be rowdy and often has physical fights between it's patrons. The cops are often called there.
Jim: "Hey Joe, let's try this corner bar called the Backstreet Pub."
Joe: "Let's try elsewhere, I hear there's always fights there, it's a known punch palace."
Joe: "Let's try elsewhere, I hear there's always fights there, it's a known punch palace."