Found 2 items, similar to lights-out.
English → English (WordNet) Definition: lights-out lights-out n 1: a prescribed bedtime 2: (military) signal to turn the lights out [syn: taps]
English → English (gcide) Definition: lights-out lights-out \lights-out\ n. a signal to turn the lights out. Syn: taps. [WordNet 1.5]