A person who attempts to demonstrate knowledge obtained by searching on Wikipedia. This person has no legitimate degree from an accredited institution in said subject/topic, but will use the online encyclopedia to prove their point on the topic being discussed.

After reading a ridiculous comment from someone that posted a link:

"Oh look, a Wikipedia Scholar is trying to prove himself again."

When you eat dirt for the first time and leave your family to build a shack in the woods

A person who jumps in on forums who has little meaningful understanding of the topic being discussed and quickly educates themselves via Wikipedia.com. Usually, but not always, these individuals post "points" for debate in the same order as they appear on Wikipedia (a dead give away).

A person whose knowledge of many various topics is mainly derived from reading Wikipedia.