Omaru Polka is a Japanese virtual entertainer affiliated with Hololive Production, where she performs as a cheerful fennec-eared circus performer character in streams and music videos. Fans know her by the nickname OmaPol and often clip her short, expressive phrases from broadcasts to share as standalone reaction sounds. Dulce de leche itself is a traditional Latin American sweet made by slowly heating sweetened milk until it thickens and caramelises. Online, this tiny clip spread through VTuber fan spaces as a soundboard staple, kept alive because the phrase sounds cute even to listeners unfamiliar with Spanish.