消しょう灯とうラッパ

noun

lights-out bugle call; taps; last post

A bugle or trumpet call signaling lights-out, used in military or camp settings. 消灯ラッパ is the common term; 'taps' is the US equivalent, 'last post' the British/Commonwealth equivalent.

• キャンプでは、消しょう灯とうラッパが鳴なるとみんな寝ねる時じ間かんだ。

  At camp, when the lights-out bugle sounds, it's time for everyone to sleep.

• 軍ぐん隊たいでは消しょう