ポンポン船せん

noun

pop-pop boat; toy steam boat

A toy boat propelled by a simple steam engine, often a candle-heated boiler with a small exhaust pipe that makes a popping sound.

• 子こ供どもの頃ころ、ポンポン船せんをお風ふ呂ろに浮うかべて遊あそんだ。

  When I was a child, I played by floating a pop-pop boat in the bathtub.