Azumanga Daioh is a Japanese school comedy that began as a manga by Kiyohiko Azuma and became a popular anime series in 2002, known for its eccentric students and deadpan humour. Short reaction clips from the show have long circulated among anime fans and meme editors, who reuse its exaggerated surprise for everyday fails and reveals. This particular exclamation endures because it is instantly recognisable to anime viewers, easy to drop into a short video, and funny even without knowing the original scene.