ダッチワイフ

noun

bamboo wife; Dutch wife

Historical meaning: a bamboo bolster used in hot weather to keep cool while sleeping. Rarely used today; see also 竹夫人.

See also: 竹夫人

• 昔むかし、暑あつい夜よるにはダッチワイフを使つかって寝ねたそうだ。

  I hear that in the old days, people slept using a bamboo wife on hot nights.