Jair Bolsonaro, president of Brazil from 2019 to 2022, became known for informal morning greetings to supporters and reporters, often beginning with a simple bom dia. Short clips of those moments spread widely on WhatsApp, YouTube and other social platforms in Brazil, where supporters and critics alike reused them as memes. The phrase works because it is ordinary and instantly tied to his public persona, so even a two second greeting is enough for listeners to recognise the reference and reuse it for jokes, greetings and political edits.