When something is just beyond all forms of Irony, that most strongest form of verbal poo-flinging. Essentially used to define a situation that is undefinable, but vaguely ironic or sarcastic.
Also used as a catchall description of modern performance art to confuse the elder generation into thinking that you're artistic.
Steve: That jerk has panhandler as his license, that's disgusting if it's true, and he's been ripping off the kind-hearted.
Jacob: Naaaa, that's just supra-ironic, besides, bums collect enough to buy something better than a shitty Hyundai.