Presto ( poker )

In Hold'em, what one says when revealing pocket 5's. This term is still evolving and subject to redefinition. The term comes from a more well-established background in Blackjack where one says "Presto!" when turning over a blackjack. When a player says "Presto!" at an appropriate time, the correct countersign is to say "Irwin". This is a method of identification, not a compulsory ritual.