Floccinaucinihilipilification - the habit of describing something as worthless
* floccus, -i a wisp or piece of wool, used idiomatically as flocci non facio ("I don't give a hoot")
* naucum, -i a trifle
* nihil, -is nothing; something valueless (lit. "not even a thread" from ni+hilum)
* pilus, -i a hair; a bit or a whit; something small and insignificant
Courtesy of my friend for the word and the thread title (the description he used in telling me).