perplexicon 

-noun, from the English perplex and lexicon
1. Collectively, all words with which one is familiar but is unable to define.

2. Words that one would commonly be expected to know based on his or her education or socio-economic class but does not.
3. Particular words, generally of an erudite nature, which one finds perpetually befuddling despite previous attempts to ascertain their meaning.

"No matter how many times I look up fecundity in the dictionary, it always seems to slip back into my perplexicon by the time I next encounter it."

"Four years of college and I all I have to show for it is a massively inflated perplexicon!"

perplexicon by $exy Lexy March 20, 2010

Perplexigon 

noun, verb, adjective
Something that is over-complicated. Something becomes complex as a result of over-thinking, obsessing and evaluating.

Perplexigon, Perplexigate

ex. (noun) We were trying to figure out the best way to get to Baskin Robbins for some of those scrumptious 31 flavors, and it became this crazy perplexigon.

ex. (verb) No need to perplixigate this, we all agree Gerald is a dork-face omega.

ex. (adj) That house looks perplexigon, does that guy think he's Frank Lloyd Wright?

Perplexigon by DK Lounge June 18, 2009

perplexic 

An extreme state of confusion, insanity, fear.

Johns mom went perplexic when he vomited all over the carpet.

perplexic by Mung August 17, 2003

perplexion 

The state you are in when perplexed.

We call Harry over who listens for a voice, saying “Hello, hello whoever you are”, into the mouth piece before passing it back with a you-got-me expression.
“Funny guys.”
He sees we’re not laughing.
“I’m in perplexion. Who was that?” asks Harry with a baffled expression.
I check the cell and the line’s dead.

Excerpt from chapter 29 of "Sixteen stories, no pets" by C.J. Beck

perplexion by C.J. Beck, author of novel 'Spiked' April 25, 2006

Perplexion 

An perplexing erection -- a boner for which there is no clear source.

Genji's perplexion in line at the grocery drew the attention of the little boy nearby.

Perplexion by blotngh22 June 23, 2010

perplexzon

confusion over whether to order an extra book from Amazon so you go over the $25 super saver minimum

The book was only 17.99 but was in a perplexzon as to whether I should order another book.

perplexzon by emmonskr.com February 28, 2011

paralexicon 

Another word for "thesaurus".

I couldn't think of another word for "thesaurus", so I had to look one up in my paralexicon.

paralexicon by JAQrabbit January 18, 2020