The Atumalaca meme, also known as Acumalaka, is a viral internet phenomenon that originated in Brazil before spreading globally as a cornerstone of modern shitposting. It features a distinct, wheezing, and high-pitched laugh track paired with various visuals, most notably a CGI laughing skeleton or a stylized creature. The humor stems from the sheer absurdity and the contagious nature of the audio, which is often used in video edits to punctuate unexpected or nonsensical moments. While the term Atumalaca itself is essentially nonsense, it has become synonymous with a specific brand of chaotic digital humor that thrives on social media platforms like TikTok, YouTube, and Discord.