The line comes from Star Wars Episode III Revenge of the Sith from 2005, where Obi-Wan Kenobi confronts General Grievous on Utapau. Years later the greeting was clipped, quoted, and remixed across forums, videos, and soundboards, becoming one of the prequel trilogy's most reused memes alongside other favorites like Darth Vader NOOOOOOOOO. Its popularity grew because the moment is instantly recognisable even without the scene, and fans keep using it as a cheerful way to announce themselves.