megalonisus - a tendency to exaggerate [according to Mrs. Bryne, uia*rs]

I'm probably about to display my ignorance of literature and science fiction at the same time, but here goes....

I had no idea who Mrs Bryne was or what uia*rs stands for. I'm still none the wiser on the latter, but Mrs Bryne (Josepha Heifetz) wrote a Dictionary of Unusual, Obscure and Preposterous Words (Secaucus, New Jersey: University Books 1974) although it's apparently out of print, tsuwm and his friends having bought up all available stock. She even has her own Word of the Day at
http://www.textstore.co.il/mrsbyrne/mrsbyrne.htm

The rest of you probably already knew, but Megalon is a monster featuring in one of the Godzilla movies. You can check out the handsome creature here:
http://www.parlorcity.com/awinterrowd/kaiju/gallery/megalon.html

So tsuwm's given definition for megalonisus sounds reasonable, although I have a problem with the suffix. "-isus" just doesn't look right to me. If it were a disease then it would be megalonitis.

After all that, I've had no success finding any reference to back up the definition, but I have been in transports of delight to hitherto unexplored parts of the Internet.