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1.
Anything Wii related that ranges from plain stupid to stupid beyond recognition.
Did you see that inflatable kart that CTA Digital made? That thing is wiidiculous!
by IdiotOfAmerica June 27, 2010
 
2.
During a round of wii sporting events. Whenever a person does a play that is sportscenter worthy it can be named as such. A normal reaction to a wiidiculous play is either amazement, shock, awe, or congradulatory.
Luke picked up the 7 - 10 split. It was wiidiculous
by archbishop tommy October 21, 2007