Definitions for "On the button"
Keywords:  dealer, last, round, hockey, button
The "dealers" position. The last position to act in each betting round after the flop.
vp. Sitting at the dealer position, the best possible place. See button.
The best table position in Hold Em, benefiting from acting last. The player who acts last in a round.
being precisely to a prescribed or specified criterion; "his guess was on the nose"; "the prediction for snow was right on the button"
just as it should be; "`Precisely, my lord,' he said"