"Oppa" is a Korean term used by females to refer to an older male, often a brother or a close male friend. It conveys a sense of affection and respect. In popular culture, especially in K-dramas and K-pop, the term is frequently used by female fans when addressing their favorite male idols, creating a warm and endearing connection. The use of "oppa" can also reflect the dynamics of Korean culture, where age and hierarchy play significant roles in relationships. It highlights the importance of familial bonds and social respect, making it a cherished term in everyday conversations among friends and family.