The line comes from Blizzard's Warcraft strategy games, where the peon is the lowly Orc worker unit that gathers resources and builds structures. Players heard it constantly while ordering peons around, which made it stick in the memory of a whole generation of PC gamers. As clips from the games were shared online, the phrase became a shorthand for getting started, especially in gaming memes, reaction videos and stream highlights. Its simple, upbeat delivery keeps it useful long after the original games, because starting work is a joke almost everyone recognises.