When somebody goes onto Wikipedia to find a specific piece of information and, usually via wikilinks, ends up going off track and going through a bunch of unrelated articles. This can be common among students who have a low attention span or other focus issues.
Person: Hey dude, Imma go onto Wikipedia to find when the Soviet Union collapsed.
Dude: OK, just don't lose track of time.
*20 minutes later*
Person: How am I on an article about racism in Australia?!
Dude: Wikipedia Hypnosis, I presume? You've gotta work on your focus, man.