Plutoed (demoted or devalued, as happened to the former planet Pluto) – so says the American Dialect Society
D'oh! Poor Pluto. I actually think it's feelings might have been hurt by the demotion. Or maybe it's happy not to have to deal with the responsibility of being a planet. At least this way it's still the most popular non-planet in our solar system (aside from the Sun, of course). Fun article!