Keep on your toes

Meaning

Stay alert and ready for action.

Usage

Used when people must be ready for quick changes.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Sports and dance metaphors about staying balanced on the balls of your feet.

Used in 20th-century training manuals and coaching notes.