A baseball term coined by Chicago White Sox announcer Ken "The Hawk" Harrelson.
It is used to describe a good outing by a starting pitcher characterized by a good K:BB ratio, a low amounts of earned runs and at least 7 innings pitched.
It can be traced back to the easy level of difficulty to pitch a good game on Nintendo systems (pre-Wii)
Did you see John Danks pitching last night. That was straight Nintendo Stuff.