Somebody talented at ice-skating, who is usually a decent person, but on stepping onto the ice, proceeds to show everyone up and act in a general dickish manner.
You know, I thought Dan was pretty alright, but when we went ice-skating it turned out he's a real ice-hole.
Under the influence of an injested or inhaled chemical substance. That leaves the person(s) stuck in a known, unknowingly state of mind.
After two days of hot rails. The girls realized they were in a iceholed state. Only moving to go to the bathroom or to cut a rug when their favorite jams played on the boom box.