Postav domek comes from the Czech-language version of Age of Empires II, where villagers respond to player commands with short spoken acknowledgements while gathering, farming and building. The phrase is the villager's reply to a build order, so Czech players hear it constantly during ordinary matches, especially in the early game when housing is needed. Shared as a short clip on soundboards, it has become a handy shorthand among fans for starting work, expanding a town or joking about finally getting organised.