One who seeks to destroy the normal view of irony, either by incorporating innovative new ways of portraying it, or by completely and utterly missing the point.
Word has it's roots in a pre-October 2003 AIM conversation between one GiantKillerRobots and his friend, commenting on a certain song.
Alanis Morissette is an ironoclast. The only thingironic about that damned song was the title.