Some casinos use sticky bonuses, which is a bonus that you cannot withdraw, only play for. Money that you win by betting it can be withdrawn in cash. If you get a sticky bonus of $200, for example, you can wager the whole amount. When you meet the bonus requirement and your winnings total $475 you can, in other words, withdraw $475 minus $200.

Sticky bonuses have gained an undeservedly bad reputation in certain circles and some people consider them a waste of time. On the other hand, sticky bonuses are not subject to stringent wagering requirements and you can treat them as a supplement to your playing capital, which can be useful when you play.