Play one's trump card
Meaning
To use one's most powerful advantage or resource at a crucial moment to achieve success.
Origin
The phrase 'play one's trump card' springs directly from the high-stakes world of card games, most famously originating from 16th-century 'triumph,' a precursor to whist and bridge. In these games, a specific suit is designated as the 'trump' suit, giving its cards the power to defeat any card from other suits. A skilled player would strategically hold onto their most powerful trump card, patiently waiting for the exact moment when its deployment would guarantee victory and turn the tide of the game. This climactic act of revealing one's ultimate advantage, the 'triumph' that secures the win, seamlessly transitioned from the card table into everyday language, signifying the decisive use of one's strongest asset.
Examples
- The CEO decided to play his trump card, revealing a secret partnership that would revolutionize the industry.
- After struggling through the debate, the candidate knew it was time to play her trump card and address the opponent's past misdeeds directly.