This clip comes from user generated soundboards, credited by its uploader to his brother, and it spread as a quick shareable fart joke rather than a movie or show quote. Its appeal is the exaggerated shartblast name itself, promising something worse than a normal fart and delivering in just over a second. That brevity helped it fit Discord chats, group messages and short form edits where a long setup would kill the gag. It remains used for pranks and toilet humor because the sound alone tells the whole embarrassing story.