The sad hamster became a familiar reaction format on short-form video platforms, where creators used the drooping, wide-eyed hamster to stand in for disappointment, embarrassment and quiet heartbreak. Rather than coming from a single film or show, it spread as a reusable template, with the same sad expression recycled across countless edits about dating, work, school and everyday bad luck. It sits alongside other sad animal reaction sounds, such as the sad meow song, and it stays popular because the animal's exaggerated gloom makes a small setback feel instantly relatable without needing any explanation.