1. Spending a copious amount of time (that can usually be spent doing something that is generally considered more productive) browsing and learning odd bits of trivia from www.wikipedia.org. *Wikiing can also be used if you are referring to adding a new Wikipedia entry or modifying a current one.
2. While www.wikipedia.org is the website that originated the word, wikiing can also be used if a user is utilizing other web-based wikis.
I've been wikiing all night long and now I'm going to screw myself over on my big test tomorrow.
I am so good at wikiing. I've made more entries than anyone ever.
I learn everything when I go wikiing at night.
Stating that one is researching on wikipedia, usually to cover for watching porn
Guy 1: Hey man, what are you doing?
Guy 2: ...just wikiing...*fap fap*
Guy 1: Why does it take you so long to reply?
Guy 2: ......
Guy 1: Hello?
Guy 2: Ok, I'm done.
I have been wikiing sea mammals for the past three hours.