Shin Chan, or Shinnosuke Nohara, is the five-year-old star of Crayon Shin-chan, the Japanese manga and anime series created by Yoshito Usui that began in the early 1990s and became a long-running hit in Japan and abroad. His loud, cheeky laugh became one of his most recognisable traits, often marking moments when he teases adults or gets into trouble. Short clips of that laugh later spread through meme pages, reaction videos and messaging apps, where fans reuse it as a shorthand for playful mischief without needing any context from the show.