Bakuhatsu comes from Konosuba, the 2016 anime where Megumin, a young Crimson Demon mage, devotes herself entirely to explosion magic. She can cast only one massive blast per day before collapsing from exhaustion, which turned the spell into a running joke throughout the series. Fans clipped her dramatic chant and the resulting explosion for memes, edits and soundboards, where its theatrical build-up made it perfect for exaggerated reactions. It remains popular because the joke is instantly recognisable even without context: one spell, maximum drama, total overkill.