Wikipedia:Bingo

Bingo is a game of chance played with different randomly drawn numbers which players match against numbers that have been pre-printed on 5×5 cards. British bingo uses different cards, but this page was started by an American editor. Wikipedia includes a diverse variety of characters, and a problematic user's behavior can serve as a random number generator. Below you will find a randomly generated Wikipedia bingo card, and a key explaining the behaviors behind each entry. While handling one or more users, mark off which behaviors are displayed. If you get five in a row horizontally, diagonally (from corner to corner), or vertically, you've won! Players who win observing only one user win a full nothing, while winners who observe multiple problematic users divide their nothing prize by the number of users observed (e.g. a winner who was observing three users wins a third of nothing). Prizes can be claimed on the talk page (on the honor system).

There is also a template to announce you've won in the middle of a talk page discussion: Bingo-win