No film, television show or named character is documented as the source of this clip, so it is best understood as a short user-made soundboard sound rather than a quote from a known work. Its file details link it to a voice-changing effects tool, which explains the processed, buzzing quality of the trill. Short raspberry and lip-trill noises like this have long been used online as quick comic reactions, because they need no context to read as dismissive, playful or unimpressed. That instant readability keeps the clip useful for memes, edits and reaction videos.