This clip comes from the SoundJay.com sound effects library, credited in its file metadata as a generic door closing effect. Libraries like SoundJay have supplied royalty-free household sounds to creators since the early web era, and short clips like this are widely re-uploaded to meme soundboards. With no dialogue or music, it works as a clean utility sound for video editors. Its one-second length makes it ideal for timing jokes, scene changes, and reaction edits where a door slam says more than words.