Welcome to hell teddy circulated on soundboards as a short reaction clip built around the contrast between a cuddly teddy and a threatening greeting. Its exact source is unclear, so its popularity comes from how people use it online rather than a single show or film. Creators share it as an MP3 for horror edits, gaming moments and dark humor posts where someone is about to have a bad time. The simple line is easy to recognise, quote and reuse, which helps it stay in meme rotations.