A rather uncommon term used to describe someone with unstoppable, or godlike abilities in his particular field, such as Babe Ruth or Donald Trump etc.
The term has taken new meaning in the Yu-Gi-Oh! card game and anime as the name of the most powerful of all monsters: Exodia the Forbidden One. Actually the sealed "ka" or soul of the ancient pharoah, once all five of Exodia's forbidden pieces are assembled in a duel, Exodia is summoned to obliterate the players current opponent and is undefeatable. In the shadow realm, Exodia is the embodiment of Yami Yugi's soul.