The story
Most probably coined in the military. Compare rack, a nautical term for a bunk bed.
Etymology from Wiktionary, CC BY-SA 4.0.
rack time
Today it means: Any amount of free time to sleep or rest. Full definition →
Today it means: Any amount of free time to sleep or rest. Full definition →
Most probably coined in the military. Compare rack, a nautical term for a bunk bed.
Etymology from Wiktionary, CC BY-SA 4.0.