鉄てっ砲ぽう水みずてっぽうみずFreq.FrequencyTop 100,000Meanings1nounflash floodA sudden, violent flood, often caused by heavy rain in mountainous areas or upstream. Used in weather reports and disaster contexts.昨さく夜やの大おお雨あめで鉄てっ砲ぽう水みずが発はっ生せいし、川かわ沿ぞい