Bababadalgharaghtakamminarronnkonnbronntonnerronnt
uonnthunntrovarrhounawnskawntoohoohoordenenthurnuk
This word has exactly 100 letters

and was used by James Joyce in the third paragraph of his well known novel, Finnegan's Wake. I have no idea what it is supposed to mean, and I guess you'd have to have read the novel to have even the faintest idea as to what Joyce was on about.
I was going to use:
Lopadotemachoselachogaleokranioleipsanodrimhypotri mmatosil
phioparaomelitokatakaechymenokichlepikossyphophatt operister
alektryonoptekephalliokigklopeleiolagoiosiraiobaph etraganopterygon
(with 184 letters) but I didn't think anybody would take it seriously. :8}
(n.) - A goulash composed of the leftovers from the meals of the
last two weeks! (from Aristophanes' "The Ecclesiazusae")
I've got no idea how you pronounce it, and I'm not sure I'd want to eat it either.
Cheers
Billy 8-{) :|
[pre]Thanks to Susan too, for filling in for me on
a couple of occasions.
[/pre]