It is surprising how many expressions that Americans use every day came from the card game of poker.
For example, you hear the expression, ace in the hole , used by many people who would never think of going near a poker table.
An ace in the hole is an argument, plan or thing kept hidden until needed. It is used especially when it can turn failure into success.
In poker and most card games, the ace is the highest and most valuable card.
It is often a winning card. In one kind of poker game, the first card to each player is given face down.
A player does not show this card to the other players. The other cards are dealt face up. The players bet money each time they receive another card.
No one knows until the end of the game whose hidden card is the winner. Often, the ace in the hole wins the game.