lights out(redirected from Lights Out (album))
1. A signal or command to extinguish lights for the night.
1. the time when those resident at an institution, such as soldiers in barracks or children at a boarding school, are expected to retire to bed
2. a fanfare or other signal indicating or signifying this
1. an order, usu. by bugle, that all camp or barrack lights are to be extinguished immediately.