The line comes from British YouTuber Stuart Ashen, whose deadpan reviews and commentary have made him a familiar voice for fans of internet culture. The short clip caught on as a reaction sound because it sums up the feeling of scrolling past something inexplicably odd in a few seconds. Creators reuse it in videos and memes whenever a post, video or trend defies easy explanation, and its British phrasing helps it stand out from louder, more exaggerated reactions. That mix of brevity and relatability keeps it in regular use.