Shao Kahn is the emperor who serves as the final boss of the Mortal Kombat fighting game series, and this laugh comes from Mortal Kombat 3, the 1995 arcade and console entry in which he returns as the main antagonist. His deep, mocking laugh became associated with his arrogant personality and with the moment a player is defeated by him. As Mortal Kombat clips spread through soundboards, YouTube edits and TikTok gaming videos, the short laugh was lifted out of gameplay and reused as a taunt, which is why it still works today as instant shorthand for a villain winning.