Wikignosis 

A wikignosis is a diagnosis of a medical condition made with the assistance of Wikipedia.

e.g.

"People have always commented on the corpse-like temperature of my hands. I was finally able to make a wikignosis after I read this (see results of Wikipediasearch). Screw you, Medicare!"

Wikignosis by DKJoint November 14, 2014

wikignostic 

having gained knowledge by consulting Wikipedia.

There are very few people who are wikignostic.

wikignostic by Uttam Maharjan 2 May 23, 2014