The sound comes from Pingu, the stop-motion children's series featuring the penguin Pingu, which first appeared in 1986. Pingu's "Noot noot" became widely recognized online through meme compilations, short edits, and reaction videos because it is simple, expressive, and instantly identifiable. Its staying power comes from how flexible it is: people use it for innocent chaos, absurd cutaways, and lighthearted trolling without needing any setup. The sound remains popular across short-form video and soundboard culture.