Pronounced "week", similar to being weak (I.E. low on energy), this is the state of total exhaustion / soreness following an intense gaming session on the Nintendo Wii.
"Dude, I'm so Wiik I can barely lift my arms...this Wiikend really burned me out"
The 7 days following the initial purchase of a Nintendo Wii, where you are so completely obsessed with it that you become a hermit in your living room.
Joe: "Hey, I called you last Monday but you never picked up. Where were you?"
Alex: "Dude, sorry, i was having a wiik."
A contraction of the words Wii (Nintendo's gaming system) and geek. Used to describe the geek-like habits of Wii users, most notably in the creation of Miis.
He churned out 20newcelebrity Miis last night. He's quite the wiik.