vocabularium 

Personal vocabulary of made up words

Airdoplane = an airplane you can hear, but not see.

vocabularium by Toastslilsis May 31, 2005

vocabularianism

The practice of knowing and using words that are beyond the comprehension of normal people.

Vocabularianism is not just a way of life, it's a vindictive embracement of an aspect of substantiality.

vocabularianism by domenick October 12, 2004

vocabularical bitch slap 

When someone uses a needlessly complicated or esoteric word when a simpler word or expression would suffice.
A common occurence amongst neophyte academics who wish to impress peers.

Why did you say "lacuna" to just say that he had a "break" or "opening" in his schedule? That was a needless vocabularical bitch slap.

vocabularical bitch slap by novalush December 18, 2009

vocabularise 

To add new words into ones own vocabulary

I love Urban Dictionary, it's such a cool way to vocabularise

vocabularise by tezdread July 15, 2007

Vocabularily 

a word used when expressing "vocab"

"I want to be challenged vocabularily."

"He vocabularily outsmarted her."

"Vocabularily, that is incorrect."

"That is so plain" -Failed Vocabularily...where as...:"The solid white scarf that Marissa is wearing is indeed quite dull." -Passed Vocabularily

Vocabularily by ThirteenReasonsWhyBookTalker March 26, 2010

Vocabularically 

The proper use of vocabulary.

Bliss's blog post is both grammatically and vocabularically correct.

Vocabularically by The Bliss September 21, 2011

vocabularian 

One who knows and uses words that are beyond the comprehension of normal people

When he used the word 'simulacrum', everyone knew he was a true vocabularian.

vocabularian by domenick September 22, 2004