The line comes from Payday The Heist, the cooperative heist shooter released in 2011, where Bulldozers are armored police units sent to stop the crew during assault waves. Players shortened the game title to PDTH in file names and soundboards, while the Dozer became one of its most feared and quoted enemies. Short callouts like this later circulated in gaming edits and meme compilations, where a single tactical phrase could signal danger without any context, which is why the clip remains useful long after the original missions.