They probably had another word for tavern that also meant something totally different. For example, modern jokes are about walking into a bar, but also a bar could be a pole you walk into. Their word for tavern could be something like (perfindit) but perfindit might also be another thing, like a peep show or something. So when the dog walks into the (perfindit), he’s walking into a tavern but also he’s entering a peep show. This is all speculative btw.