The line comes from Hearthstone, Blizzard's digital card game released in 2014, where the Doomsayer is a neutral minion that destroys all other minions at the start of its controller's turn. In the Portuguese localization the card is called Agoureiro and enters play shouting this warning, a direct match for its board-clearing effect. Players clipped the voice line and it spread to soundboards and meme edits outside the game, where it now signals any approaching disaster, deadline, or inevitable failure in a few dramatic seconds.