The phrase comes from VTuber and streaming slang, where a lewdtuber is a virtual streamer known for suggestive or adult-themed content, so saying the opposite works as an instant in-joke. The clip circulates as a short user-uploaded soundboard sound rather than a line tied to a widely documented show or release, and its appeal is in that shared context. Viewers who follow VTubers recognise the label immediately, which lets editors use the denial as shorthand for innocence, irony, or playful embarrassment in short-form videos and reaction edits.