There ( poker )

1) Having made a hand; used among thieves, in particular players who cheat by signaling each other the contents of the hands of opponents. "He's there," a seemingly innocent remark, might be an announcement by one such scammer to his partner that the person they're trying to beat (and whose hand the former caught a glimpse of) has made his hand or has a hand better than the one of the second scammer.
2) Making the hand, or catching the required card. "How come it's never there?" is an oft-heard remark by a self-pitying player who thinks he never makes a hand when it counts.