Shared online under the name Song for Entum, this short clip spread as a meme sound built around the endlessly repeated bum bidi bidi bum bum hook and the deadpan line that it is not illegal. Little is confirmed about its original recording or creator, so its life online is mainly as a shareable soundboard clip. Creators reuse it for carefree dancing edits, cheeky rule breaking jokes, and lighthearted reaction videos, where the nonsense singing signals that nothing in the scene should be taken seriously at all.