The clip comes from Trick 'r Treat, the 2007 Halloween horror anthology film, in its story about a school principal who hands out poisoned candy. The child who eats it becomes violently sick, and that extended vomiting became the part most often lifted as a standalone sound. Shared on soundboards and in meme edits, it outlived the scene as a go-to effect for nausea, bad food and extreme disgust, especially around Halloween, and it remains popular because few stock vomit sounds sound this long and realistic.