Joseph Joestar is the flamboyant hero of JoJo's Bizarre Adventure, and his repeated cry of Oh My God became one of the series most recognisable running gags. The line spread through anime clips, reaction videos, and short-form edits, where fans reused it to punctuate unbelievable moments. Because the delivery is so over-the-top, it works far beyond the show itself, becoming shorthand online for disbelief, panic, and comic exaggeration in memes and fan edits.