to put something into your pocket:
Maggie locked the door and pocketed the keys.
to steal money, especially money that you are responsible for:
One inspector had pocketed up to $500,000 in bribes.
to get a large amount of money, win a prize etc, especially in a way that seems very easy or slightly dishonest:
Johnston pocketed $2,500 in prize money.
to hit a ball into a pocket in the game of pool, snooker and billiards [= pot]