The clip comes from Canal Inutilismo, the Brazilian YouTube channel created by Lucas Vinícius, known online as Inutilismo. His dry, self-deprecating humor made short phrases from his videos easy to lift as reaction audio. Eu não sei spread through Brazilian meme pages, soundboards and messaging apps because the line is universal and instantly recognizable. It remains popular as a go-to sound for confusion, failed answers and awkward moments where admitting you have no idea is funnier than explaining.