pedantosaur 

(puh-dan-toe-sore)
-noun

The precocious and pedantic use of esoteric words in a conceited, scholarly manner. The words are dropped into a conversation so frequently that they cannot be ignored, thus giving the speaker additional undeserved attention and perpetuating the cycle.

"I couldn't understand a word he said. I stopped listening to that narcissistic pedantosaur over an hour ago."

pedantosaur by Dyslexicon March 29, 2010

pedantsturbation 

n. any form of mental masturbation that is particularly pedantic; for instance, officiously correcting others' trivial mistakes with no constructive purpose; also, any type of discourse that is specifically designed to impress or confuse the reader/listener with "big" words and/or fancy phraseology, particularly to disguise the fact that: a) there is no real underlying point, or b) the pedantsturbator in question cannot defend his/her position with sound logic or evidence.

basically, it's like sophistry with an added masturbatorial goal, such as oneupmanship.

those creationists sure do try, but without compelling evidence, no amount of pedantsturbation will convince me that the theory of evolution isn't valid.

pedantsturbation by rtarbinar July 6, 2009

pendantasaurus

Someone who is overly pedantic; overly precise to the point of frustration.

They are the sort of purpose who would point out that it should be pedantasaurus (without the first n).

When Susy responded to being called a doctor with, "Actually, I'm an an anesthesiologist," she was being a pendantasaurus.

pendantasaurus by AZR October 21, 2010