Idioms, Cliches, and Slang
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What does the idiom ace in the whole mean?

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Wiki User
05/08/2014

Nothing. The correct idiom is "ace in the hole," which literally means that you have an ace card (the highest value in the deck) hidden away somewhere so you can win the card game. It's come to mean any situation where you have a hidden advantage or something you can "pull out" to win the situation.