This effect comes from the SoundJay sound effects library, credited in the file metadata, a long-running source of free impact and action sounds used by editors and game makers. Short hits like this spread through soundboards and video edits because they are easy to trim, loop, and drop onto any clip without music or dialogue getting in the way. It stays popular for strength and fight edits, where a brief, heavy impact can turn an ordinary punch, flex, or transformation into the strongest moment in the scene.