Short vocal fillers like this drawn-out ehhhh spread as reaction clips on meme soundboards and in short-form video edits, where creators needed a universal sound for hesitation and disbelief. Rather than coming from one identifiable scene, it works because everyone recognises the noise from everyday conversation - the sound you make while searching for an answer you do not want to give. Its length makes it flexible for editing, so it stayed popular in comedy timing, awkward pause memes and dubbed-over reaction videos.