Mofumofu is a familiar Japanese onomatopoeic word for fluffy, soft texture, widely used by fans to describe plush animals, fluffy hair and cuddly characters in anime and manga culture. Online, short clips using the word or evoking that feeling are shared as reaction sounds for cute moments, especially in pet videos, cozy edits and fan-made compilations. Its appeal has lasted because the feeling it names is instantly understood even by viewers who do not speak Japanese, making it a simple shorthand for softness and affection across different kinds of short-form video.