2006 Word of the year, as noted by (respected? heh) http://www.americandialect.org/ organization. Although it feels topical, it’s actually quite a good candidate for a word of the year (immaterial of the actual social impact of the granting organization), since Pluto has been part of our world’s vocabularly for quite some time now. It really is a change, even if it is a technical distinction.
“To pluto is to demote or devalue someone or something, as happened to the former planet Pluto …”