an automatic instinctive reaction displayed during a wii game.
Chuck impressed everybody with his wiiflexes after he made a hole in one on wii golf.
by chuckaloafofbaloney August 05, 2009
The perfect timing needed to excel in any motion-sensing game for the Wii.
In order to win at Wii Tennis, you need to have good wiiflexes, or else you will mishit the ball.
by Domonic January 23, 2009