He knew the answer, all right, but he couldn't make himself hit that buzzer.

If they like the performance, they hit their buzzer to light up their box, and then stand up and sing along.

The first housemate to hit his buzzer would leave the house with the amount displayed at the time he pressed the button.

Should the giver say one, a censor on the opposing team hits the buzzer and the giver must move on to the next word.