The phrase comes from WWE, where manager Paul Heyman has long introduced Brock Lesnar as his client during promos and entrances. It became especially famous after WrestleMania XXX in 2014, when Lesnar defeated The Undertaker and ended his 21-match WrestleMania winning streak. Heyman then leaned into the title of conqueror in later promos, repeating the introduction with even greater pride. Fans clipped the moment for wrestling edits, memes and hype videos, and it remains popular because it instantly signals dominance, surprise and a historic upset.