The greeting comes from Sylvain Lévy, co-host of Vilebrequin, the French YouTube channel he runs with Pierre Chabrier that built a huge following with car culture comedy. In France the duo's catchphrases and reactions are widely quoted, and short clips like this 'bonne année' circulate every December and January on meme soundboards and in group chats. Creators reuse it because it packs a whole New Year toast into about a second: festive, personal and instantly understood by anyone who knows the channel.