| "Jokisen" was a product name of high-quality green tea, and as cups of strong green tea excite drinkers, this poem satirized those who were frightened and worried by just four jokisen (steam boats) from foreign countries. |
上喜撰とは玉露茶の商品名で、濃茶を飲むと興奮するように、たった四隻の外国船（蒸気船）に驚き、心配になることを風刺した。 |