[rwest]

A ball hit perpendicular to the ground wont get the bounce I'm talking about and have witnessed. A chop does not require action that is perpendicular. When chopping down a tree, the axe is swung at an angle. The definition of a chopped ball does not require it to be perpendicular. Your description is very similar to what I've seen and I am talking about. The only exception is that the ball is not hit directly ( at a 90 degree angle to the ground) down.

Imagine a pitch that is about 6 feet off of the ground in front of the plate. The batter brings the bat over his/her head and on top of the ball and drives it down at an angle. That is, in my opinion, a chop. In all the clinics and camps I've been to I've never had a a chopped ball described or illustrated. It seems fairly obvious to me what a chop is.