This sound is mainly recognized online as a short blueberry transformation meme effect rather than for a clearly documented standalone origin. It is shared in soundboards, meme edits and short videos where creators want a fast cartoon inflation cue. The appeal comes from how quickly it sells the visual idea of someone becoming round, overstuffed or blueberry-like. Its continued use comes from that very specific comedic niche: one second of audio that instantly communicates an exaggerated change in shape.