鉄てっ砲ぽう風ぶ呂ろてっぽうぶろMeanings1nountraditional Japanese bath heated by a metal pipeA bath where water is heated by a metal pipe (often a gun barrel) passing through the firebox; historically used in rural areas.昔むかしの農のう家かでは、鉄てっ砲ぽう風呂ぶろがよく使つかわれていた