This sound is associated with Dawn of War 2 and the Warhammer 40,000 idea of Exterminatus, the in-universe order to wipe out an entire world. Online, the phrase spread beyond strategy game fans because it neatly captures extreme escalation in one memorable command. It keeps showing up in meme edits, gaming clips and lore videos whenever a creator wants to frame a problem as hopelessly corrupted or beyond repair. The appeal is simple: one line turns a small setback into a parody of total, irreversible judgment.