"Going down a wikihole" is a term used to describe the phenomenon in which one opens a wiki article about something cool, clicks on a link to another article about something ever cooler, and eventually comes up for air 6 hours or so later after having clicked on all manner of related cool wiki links. The word is based on "wiki" as in "wikipedia" plus "hole" as in rabbit hole, and is inspired by the notion that wikipedia offers its own highly seductive type of single-user rabbit hole. It is similar in meaning to "wikitrail" but implies a certain loss of control at some point.

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

Going to Wikipedia to look up a simple piece of information, and ending up spending several hours reading about things you didn't know existed.

The infinite regress of looking something up on Wikipedia - similar to a philosophical "rabbit hole", a wiki-hole is when you cannot be satisfied with a single article and find that there is always at least one other article that must be read... ad infinitum.