Breaking the bank

In gaming, breaking the bank refers to a player winning a critical sum of money from the casino. The literal, extremely rare, situation of breaking the bank, is winning more than the house has on hand. The term can also been used for the act of winning more chips than there are at the table. Another situation of it portrayed in fiction is a situation where a gambler will win more money than the casino owns, forcing the casino out of business, and winning the casino itself as a prize.