The sound comes from Pingu, the stop-motion children's series about a young penguin living at the South Pole, whose signature honk became known as Noot Noot. Clips of the call circulated widely on YouTube and later TikTok, where editors slowed it down, boosted it and cut it over dramatic entrances. The epic version leans into that joke, making the honk louder and more triumphant. It endures because the sound is instantly recognisable even without the picture, and it turns almost any entrance into a playful punchline.