Risada bruxa is Portuguese for witch laugh, and the phrase has become the search term Brazilian creators use for this type of stock cackle online. Short laugh effects like this circulate widely on soundboards and editing libraries because they need no context or language to understand. The clip is most active around Halloween, in horror game edits, fantasy parodies and family videos where someone is teased for acting wicked. Its staying power comes from instant recognition, as a few seconds of cackling communicates a whole character type.