A poker deposit bonus is an incentive offered by online poker rooms to attract new players and reward existing ones. When players make their first deposit, they receive a percentage of that amount as bonus funds, which can be used to play poker. This bonus often comes with specific terms, such as wagering requirements and time limits, which players must meet before withdrawing any winnings. By taking advantage of these bonuses, players can enhance their bankroll, allowing for more extensive gameplay and increased chances of winning at the tables.