The line comes from Eddy Malou, a Congolese speaker who became a Francophone internet meme after a television interview where he explained economics in elaborate invented French, coining 'la congolexicomatisation des lois du marché'. Clips of his solemn delivery spread through YouTube edits, Facebook pages and WhatsApp audios, turning his phrases into reaction sounds. 'Mais oui c'est clair' survived because it is short, instantly quotable and perfectly deadpan, letting creators ironically certify any obvious statement with mock expertise.