Casino markers are essentially credit lines extended by casinos to players, allowing them to gamble without immediate cash. When a player requests a marker, they sign a marker slip, which acts as a promissory note to repay the casino. Markers can enhance the gaming experience by providing convenience, but they also come with risks, as failure to repay can lead to serious financial and legal consequences. Understanding the terms and conditions associated with casino markers is crucial for responsible gambling, ensuring players remain aware of their financial obligations while enjoying their time at the tables.