DD Poker was created during the "Poker Boom years".
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The origins of "ace up your sleeve". The expression "ace up your sleeve" comes from card games, where the ace cards are usually the highest ranking. A more specific origin is poker, or 5 card stud. The similar idiom having an ace in the hole refers to the dealer dealing an ace face down to a player, so that the other players can't see it, giving the player an advantage unknown to the others. Having an ace up the sleeve, however, refers to cheating. Card sharks, who made their living traveling around and gambling in poker games, would often tuck an extra ace or two up their coat sleeve, to be pulled out when most needed. Both versions of the expression seem to be used in the same figurative sense, however, with neither having a more pejorative sense than the other.
The word ace used for playing cards comes from an Old French word as, meaning a single unit (such as currency). This was originally used as the name of a dice marked with one spot them, and later as a card marked with one spot. The middle English word as gave way to the modern word ace. The word ace being applied to the highest card caused it to be associated with excellence and this is why fighter pilots who shot down many enemy aircraft during war came to be called ace. Later, this was extended to any one who showed great ability.