The phrase comes from Lula, the Brazilian politician whose speeches and interviews are frequently clipped and shared as memes in Brazil. Não seja leviano, meaning do not be frivolous, spread through social media and soundboards as a short reaction audio rather than as a full speech excerpt. Fans and critics alike reuse it to dismiss unserious arguments, and its popularity reflects Lula's recognisable voice and the phrase's direct, moralising tone. It remains a staple of Brazilian political humour because the rebuke fits almost any shallow comment.