The phrase grew from Dr. Leonard McCoy's death pronouncements in the original Star Trek television series, which began airing in 1966. Played by DeForest Kelley, McCoy often addressed Captain Kirk as Jim while confirming that someone, or something, was dead. Repeated variations turned the wording into one of the character's best-known catchphrases. Later references, parodies, and internet reaction posts detached it from specific episodes, preserving it as concise shorthand for anything broken, finished, or beyond recovery.