The phrase comes from a televised NFL game between the Buffalo Bills and the New York Jets on September 28, 1986. Referee Ben Dreith flagged Jets defensive end Mark Gastineau, number 99, after a hit on quarterback Jim Kelly and announced that he was giving him the business down there. The unusual wording was replayed for years on sports blooper reels and talk shows, then found a second life online as a meme sound for fights and fouls, long after most viewers forgot the original play.