This short line comes from Age of Empires II, the classic real-time strategy game first released in 1999 and still played and streamed today. In the game, French-speaking villagers respond to orders and resources with brief spoken acknowledgements, and this grateful gold line has been lifted from that context into soundboards and short-form edits. Its charm is its contrast: an old-world, courteous thank-you used for modern gaming wins, donations and lucky moments, which keeps it instantly funny without needing translation.