'Sayang' is a Malay and Indonesian word of endearment, roughly meaning darling, dear or love, and it is commonly used between partners and close friends. Online, the clipped voice version spread through anime edits, TikTok videos and soundboards as a cute, instantly recognisable affection cue. It sits alongside other short anime voice favourites like tuturu and onii-chan, which are also traded as reaction sounds. Its popularity comes from how much emotion the single word carries, making it reusable for romantic jokes, edits and messages without needing any extra context.