Alegria is the Portuguese word for joy, and this short clip centres on Brazilian comedian Diogo Defante shouting it with exaggerated enthusiasm. Shared as a meme sound on soundboards and in short-form edits, it has become a quick shorthand for pure, over-the-top happiness that needs no translation for viewers who recognise the delivery even if they do not speak Portuguese. Its appeal is its simplicity: one word, one burst of energy, instantly recognisable. Creators keep returning to it because it adds instant celebration to wins, jokes and reaction moments without needing any setup or explanation.