Joseph Joestar is the hero of Battle Tendency, the second part of JoJo's Bizarre Adventure, and his exaggerated English exclamations became some of the series' most quoted lines. Fans clipped his Oh No alongside other signature moments like Za Warudo and the To be Continued ending to use as reaction sounds across forums, Discord and video edits. Part of a long running anime meme culture, the shout stays popular because it is instantly recognisable to JoJo fans while still reading clearly as panic to anyone else.