a person with no game console of their own, who constantly goes to his or her friend's houses just to play on there Wii.
(can also be applied to any other gaming system i.e. xbox 360 or PS 3)
I thought Anthony wanted to come over so we could make out; instead he makes a beeline for my Wii and enthusiasticly yells "I will so own you at Wii tennis!" I need to dump that Wii bum.
I'm such a Wii bum, I made a Mii at at least 3 other peoples houses...