Shuba is the fan nickname for Oozora Subaru, the energetic Hololive Japan VTuber known for her loud reactions and duck-like shouts during game streams. Short voice clips from her broadcasts are often cut by fans and shared on soundboards and in edit communities, where a single drawn-out noise can become a reusable reaction. This ommm clip follows that pattern, spreading less as a full stream moment and more as a standalone meme sound that fans recognise instantly from her voice and delivery alone.