To move freely about Wikipedia articles without a definite purpose or goal.
"I'm so bored I spent the last 12 hours wikiwandering and ended up in an article about the No. 300 Polish Bomber Squadron."
The act or process of looking something up in a wiki site, most usually Wikipedia, and then following a trail from there based on entry links which catch your attention.
"I looked up Suzuki motorcycles in Wikipedia and read that it was started in the Shizuoka Prefecture, who's entry told me that a massive earthquake occurs every 100 to 150 years and that the last one was 146 years ago. This prompted my interest in big earthquakes and the wikiwander went from there."
The process in which a user logs on to Wikipedia to research a specific topic, only to find themselves on a completely unrelated topic several hours later.
Chris: Dude, I went to Wikipedia last night to do some research for my science project.
Mike: Did you find what you were looking for?
Chris: No. I wikiwandered for four and a half hours and found myself reading about the English parliament.
When one uses wikipedia to find a useful piece of information, then spends the next hour clicking links.
Peter started off by looking up penguins, but wikiwandered his way into the sound barrier.