Fun words that aren't in the dictionary, or will soon be in the dictionary: blogosphere, bookosphere, vanity sizing, idea-ating, grass station, and a myriad others.
Another one: Plutoed (to demote or devalue something, as was done to the former planet, Pluto)
As our culture changes, we will invent words to articulate our activities, feelings, and lives. The dictionary should no longer be seen as a constricting force, but more as a guidebook. Rather than feeling weird that a word you use isn't in the dictionary, start feeling cutting edge.
Now, I'm off to runercise.