The line comes from Star Wars Episode V The Empire Strikes Back from 1980, spoken by Darth Vader during his confrontation with Luke Skywalker on Cloud City. It sums up Vader's view of the fight, a cold put down that shows how outmatched Luke still is against a far more experienced opponent. The quote became a staple sample in Star Wars games, trailers and fan edits, then moved into broader meme use as a shorthand for any villainous or smug character winning with minimal effort against weaker opposition.