The sound comes from the Fairchild Republic A-10 Thunderbolt II, the American close air support aircraft built around its massive 30mm GAU-8 Avenger rotary cannon. First flown in the 1970s, the aircraft became famous for the low, buzzing burst its gun produces during strafing runs. Clips of that fire spread through military footage, documentaries and video games, and editors now reuse the short burst as shorthand for unstoppable firepower in memes, montages and reaction videos.