Best definition
A game where a group of people each guess the type of article that will appear when Random Article is

pressed on Wikipedia.
(Also called Wikiwhatsnext and Wikiskiing)

“I said Famous Jew and it was Anne Frank, I won that wikiwhack!”
wikiwhack: define #2

The act of cutting out the middle-man, that is going straight to for an answer to a question/debate instead of using the tired old route of which will come up with wikipedia anyway.
Scotty: What’s the capital of Burkina Faso?

Tim: I dunno, wikiwhack it!