Though the Swanton Bomb has become a well-known finishing move among Smash players, many are unaware of the origins of the phrase. The original “Swanton Bomb” was a finishing move invented by legendary Japenese pro wrestler The Great Sasuke. To satisfy the crowd’s thirst for blood, Sasuke would execute a diving flip onto his opponents in a move that he called the “Senton Atomico.” The move came to America when wrestler Jeff Hardy modified it and gave it its current name.

Over the years, the Swanton Bomb became one of Jeff Hardy’s most popular finishers. It’s difficult to do justice to his take on the move, so I’ll leave that to the eloquent top description of it on UrbanDictionary: