Wahahaha is a stylised written laugh that has been used in comics, cartoons and online chats for decades to signal loud, unrestrained laughter, and the German word lachen in the original title simply means laughing. On soundboards the clip sits alongside other reaction laughs such as the baby laughing meme, shared for edits where a natural chuckle would feel too small. Its exaggerated delivery helped it spread in short meme videos and gaming clips, where creators reuse familiar laugh cues to mark a joke instantly without explaining the humour to viewers.