ぽん太た郎ろうぽんたろうMeanings1nounidiot; moronSlang term for a foolish or stupid person; often used jokingly among friends or as a mild insult.あいつ、また遅ち刻こくしたよ。ほんとぽん太た郎ろうだな。That guy was late again. He's such an idiot.ぽん太た郎ろうみたいなこと言いうなよ。Don't say something so moronic.