Wiki-Pedia-Phile 

Someone who refers to Wikipedia's information on every occasion and treat it as their own private gospel.

We don't want Gavin in our quiz team as he is a Wiki-Pedia-Phile and tends to get his questions nearly correct but sadly misses the mark on every occasion.

Wiki-Pedia-Phile by Bradford Shopper 2 December 4, 2010

wiki-fricken-pedia 

Life saver.

"I need to write an essay for tomorrow. Thank God for wiki-fricken-pedia!"

wiki-fricken-pedia by Melan Procrasinators Inc. February 25, 2009

Dick-a-pedia 

This is a term used to describe a person who always knows everything. They allways have the answer, weather it is the right answer or not. But the most defining aspect of this personality is that they are a complete prick in how they go about being a know-it-all or correcting other people.

Me:

I think I will name my tortoise Bebop or Rockstedy.
My friend:

well thats stupid because Bebop was a hog and Rockstedy was a rhino.
Me:
Listen, Dick-a-pedia I dont give a shit what they were. Those are the names I like so fuck off.

Dick-a-pedia by MR.UBERZ1 June 19, 2010

Spic-a-pedia 

1) Someone of Hispanic, Latin, Mexican, etc. descent that acts like a know-it-all.

2) Someone that is very culturally versed in Latin and/or Hispanic customs or traditions.

1) You know that guy Carlos in accounting? That fucker doesn't know shit but he cuts in on all our conversations like he's a goddam spic-a-pedia.

2) Hey, Spic-a-pedia, what exactly are we supposed to do with this pinata?

Spic-a-pedia by DarthRandal July 13, 2011

Dave-o-pedia

When someone knows the answer to every question that is asked of them, no matter what the subject matter, time of day or amount of alcohol consumed.
A spoof on the word encyclopedia except the "encycl" part is replaced by person' name.
Also seen in Greys Anatomy as used by Alex Karev.

"dude your brother is Dave-o-pedia" said Hayley to Nicola

Dave-o-pedia by Holy Moseph! March 26, 2009

world'o'pedia 

a neologism that combines the words 'world' and 'encyclopedia' to convey something that contains knowledge about the entire world

My smartphone is my palm-size world'o'pedia

My friend is so knowledgable, we call him a world'o'pedia

world'o'pedia by planetpuja October 3, 2014

Wil-i-Pedia 

The knowledge of all things contained within the mind of Wil Tracy

I needed to know about all things St. Nicholas so I used the Wil-i-Pedia.

Wil-i-Pedia by JudgeDeath December 14, 2011