Shake a leg

Origin

Imagine the cramped, noisy decks of a 19th-century sailing ship. When the bosun needed to rouse the crew from their hammocks, often after a short sleep, he’d bellow, "Shake a leg!" It was a direct, no-nonsense command to physically get out of bed, to literally shake a leg free from the covers and start moving. This brisk order, born from the urgent demands of sea life, perfectly encapsulated the need for speed and immediate action. From those crowded bunks, the phrase quickly sailed ashore, embedding itself in everyday language as a punchy, impatient way to tell someone to hurry up or get going, still carrying the salty urgency of its maritime beginnings.