verb: derived from the Red Dwarf episode Beyond a Joke where the concept of Lister wanting Ketchup served with his Lobster causes his head to explode as shown here.
1. The state caused when an event is so shocking to the system that it causes the head to spontaneously explode.
2. The act of one’s head exploding over events that can’t be processed.
3. The current state of Obama supporters who might now be realizing that he had less experience and legislative ability than Dan Quayle; by a LOT.
Update: found an embed