Bubbles is the small orange bird from Angry Birds who can inflate himself to a much larger size, so a deflating sound fits him perfectly as a visual joke. Fans reuse the clip online as a shorthand for something losing its energy, confidence or hype, often captioning it as a balloon losing air. Because the sound is short, cartoonish and easy to recognise, it keeps appearing in game edits, fail compilations and short-form videos whenever a moment needs a soft, silly letdown rather than a loud crash.