On The Show, Ze Frank mentioned that a friend of his, named Gal, realized that there is no adjective meaning "having an extensive vocabulary" and is trying to get a new word, Megagaltastic, put in the dictionary. Apparently, a word has to be in use for at least 5 years and there must be 5 published instances of the word before Oxford will include it in their dictionary.

I think it would be kind of cool to have a word based on my name, so in support of this, I recommend that the next time you are describing someone with a big vocabulary, call them "megagaltastic".