What is Trump Card?
1.
The final resort but often the easiest way out.
You're most powerful option in succeeding at anything in life.
Unfortunately, once used, the trump card can rarely be used on the same person again. If reused it will rarely be as powerful.
Bill Gates: And then I played my Trump Card.
Your Boss: Sorry John, I can't give you time off work again. You're grandmother died 5 times last year...
John: Looks like I overplayed my Trump Card
See
2.
To be used in place of saying you're getting laid.
I can't hang with guys tonight. I'm playing my trump card.(Sex trumps everything else}
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