In Omaha hold 'em or Texas hold 'em, refers to an ace in one's hand without another card of the same suit. Used especially to describe the situation where the board presents a flush possibility, when the player does not in fact have a flush, but holding the ace presents some bluffing or semi-bluffing opportunity. Compare to "blocker".
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| fast | Aggressive play. I was afraid of too many chasers, so I played my trips fast. Compare to "speeding". | U |
| cards speak | See cards speak (poker). | U |
| four-straight | Four cards in rank sequence; either an open-ender or one-ender. A non-standard poker hand in some games, an incomplete drawing hand in most. Sometimes "four to a straight". | U |
| case card | The last available card of a certain description (typically a rank). The only way I can win is to catch the case king., meaning the only king remaining in the deck. | U |
| outs | See out (poker). | U |
| pick-up | When the house picks up cash from the dealer after a player buys chips. | U |
| rakeback | Rebate/repayment to a player of a portion of the rake paid by that player, normally from a non-cardroom, third-party source such as an affiliate. Rakeback is paid in many ways by online poker rooms, affiliates or brick and mortar rooms. Many use direct money payments for online poker play. Brick and Mortar rooms usually use rate cards to track and pay their rakeback. | U |
| betting structure | The complete set of rules regarding forced bets, limits, raise caps, and such for a particular game. See betting (poker). | U |
| lock up | To "lock up" a seat in a cash game means to place a poker chip, player's card, or other personal effect on the table in front of the seat, to signify that the seat is occupied even though the player may not be present. | U |
| air | In a lowball game, "giving air" is letting an opponent who might otherwise fold know that you intend to draw one or more cards to induce him to call. | U |