Rock the boat

Meaning

Disturb a stable situation.

Usage

Warns against upset when calm is preferred.

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.

Boat rocking causing instability makes sense to avoid movement.

Used since the 19th century in nautical and corporate contexts.