“Oppa” (오빠) is a Korean term used by females to refer to an older brother or an older male, typically a close friend or boyfriend. While its literal meaning is “older brother,” it’s often used by women when addressing older males to show respect, affection, or familiarity.
In Korean pop culture, particularly among K-pop fans, “oppa” is commonly used to address male idols or celebrities as a term of endearment.