Aplau takes its name from the opening letters of applause in several Romance languages, including Spanish aplaudir and Catalan aplaudir, and it is tagged simply as an efecto, or effect. Online the clip circulates as a quick reaction sound rather than a clip tied to one show or person. Editors drop it into memes, edits and short videos wherever a crowd response is needed without filming real applause, which explains why it keeps being reused for both genuine praise and ironic celebration.