Wow at the condescension here. You would think a gaming board would be more interested in game design and the improvement of tutorials but apparently not.
I have never encountered the term in any game, video or article about games ever or for that matter in any media outside of games so it's definitely not common enough to use in a tutorial.What? Pip has been the term for that sort of UI/gameplay element for ages. Its like complaining that a game doesn't explain what a hit point is.