I hope you expect a zillion different responses, I'm sure that's what you'll get. Here are my definitions:
Cranker: Someone whose ball speed and rev rate are such that they can A). open up the lanes, and B). overpower the condition. Simply put, a cranker has above-average ball speed and ball rotation.
Tweener: Someone whose ball speed and rev rate lie between that of a cranker and a stroker. Such bowlers are more prone to seeing over/under reaction.
The Twig: I've always known the twig as the one board and only the one board.
Playing Deep: I'd say playing left of 20 at the arrows would be my definition of "deep."
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"Nobody in the game of football should be called a genius. A genius is somebody like Norman Einstein."
-Broadcasting Extraordinaire and Mensa Member Joe Theismann