gravanity
n.— «Evers’ team has noticed that people increasingly want to leave their mark in public. At the Tate Britain Museum in London, for instance, visitors are asked to write captions for works of art. Selected contributions are then displayed next to these paintings. Evers has coined a name for this: “gravanity,” or the merger of graffiti and vanity.» —“Customers designing products is hot trend” by Zakir Hussain Indianapolis Star (Ind.) May 24, 2005. (source: Double-Tongued Dictionary)