Smack Down is a term used to describe an event in professional wrestling, where two wrestlers compete against each other in a match. The term is derived from the word 'SMITE', which means to strike with great force. In professional wrestling, a Smack Down is a match that is usually more intense and physical than other matches, and often involves more high-flying maneuvers. It is also used to refer to a situation in which one wrestler dominates another, often leading to a decisive victory.