"단골" (pronounced "dangol") refers to a regular customer or patron who frequently visits a particular business, such as a restaurant or shop. These customers often develop a relationship with the staff and may receive personalized service or special treatment due to their loyalty. In many cultures, having a "단골" is valued as it indicates trust and satisfaction with the service or products offered. Businesses often strive to cultivate regular customers, as they contribute to steady revenue and can help spread positive word-of-mouth, enhancing the establishment's reputation in the community.