The debt snowball method is a debt repayment strategy that focuses on paying off the smallest debts first. By listing all debts from smallest to largest, individuals make minimum payments on all debts except the smallest one. Once the smallest debt is paid off, the freed-up money is then applied to the next smallest debt, creating a "snowball" effect as payments grow larger. This method is popular because it provides quick wins, boosting motivation and confidence. As each debt is eliminated, individuals can see their progress, which can encourage them to stay committed to becoming debt-free.