A hand or finger tendon that gives a player the quickness and flexibility to master video games, especially games that require great dexterity and precise button pressing sequences.
by Soleijhee January 3, 2009
Get the Nintendonmug. A chronic painful condition that effects the muscles or joints in the hand, fingers and/or forearm after playing videogames too much.
Dude, I played Final Fantasy for three days straight, but my Nintendonitis flared up so I couldn't play anymore.
by Aeronius July 21, 2008
Get the nintendonitismug. The cramp you get in your hand from playing video games, especially between the thumb and forefinger.
by hkmtbr December 17, 2008
Get the Nintendonitismug.