The practice of a card counter changing the size of their bet based on the player's advantage.
A big jackpot won after risking only a small amount of money.
A casino's exclusive brand of slot machines.
In blackjack card counting, the counter mainly tracks the number of high vs low cards remaining in the deck. There can also be a separate side count, almost always of undealt aces.
Code that indicates the dealer stands on all hands totaling 17. This includes soft 17, e.g. A6. This rule favors the player.
Five cards which are in sequence by rank and not all of the same suit. E.g, 76543.
A payout schedule that is unfavorable to the player, i.e. pays less than full pay ones.
The situation where a player tries to complete a straight, either with a gap between their cards (inside, e.g. 6532) or not (open-ended, e.g. KQJ10).