One who has multiple personalities, specifically eight; many of which may contradict eachother, i.e. gangsta, skater, emo/punk, scene, jock, playa, prep, and/or rebel. Similar to, but not synonymous with multiple personalities or schizophrenia. People with this condition are known to change personalities often, rapidly, and without warning.
Person One: Wait, Sean is emo today? Yesterday he was acting gangsta.
Person Two: Oh, he's such an octoface.