Buzz It! is a card game with a electronic timer.
The players all receive 3 cards which each have 2 questions on them. Each at their turn can ask one of the two questions to the others. When the questions is asked each of the other players must give an answer to the question within a time limit. The players must keep on giving answers until one player can't answer or can't answer quickly enough. This player then receives the question card as a negative point.
The timer is handed over to the next player and he/she reads one of the questions on his/her card.
The game stops when all the players have used their own question cards and the player with the fewest received cards wins the game.
The timer can be set on 5 or 8 seconds and makes a buzzing sound (hence the name)