Oppa is a Korean word used by a younger woman to address an older brother or an older male friend, and it carries a warm, affectionate tone that has travelled far beyond Korea through K-pop fandom. Jennie, a member of BLACKPINK, is one of the group's most recognisable voices, and short clips of her speaking have become popular reaction sounds among fans on TikTok, Instagram and YouTube. This two-second clip is shared in fan edits and memes because it is instantly recognisable, easy to drop into a joke, and captures the playful side of K-pop fan culture.