In gambling, a marker is a form of credit extended by a casino to a player, allowing them to gamble without immediate cash payment. Essentially, it acts as a loan, where the player signs a marker slip, promising to repay the amount later. Markers are commonly used in table games and can enhance the gaming experience by providing players with more flexibility. However, failing to repay a marker can lead to serious consequences, including legal action and being banned from the casino. Understanding markers is crucial for responsible gambling and financial management.