Chainsaw Man began as a manga by Tatsuki Fujimoto, first published in 2018, and became a widely watched anime adaptation by studio MAPPA in 2022. The story follows Denji, a young devil hunter who merges with his chainsaw devil companion Pochita and gains the ability to transform parts of his body into chainsaws. That loud, violent image became central to the series' identity and to its memes, edits and reaction clips online. Fans still use the sound to signal sudden power, chaos or a dramatic turn, because the chainsaw itself has become shorthand for the show.