Bucket dad, what these people are saying are not "catch phrases". They believe that you pull up on the ball. I have heard it explained and demonstrated. This is where these wrist flips came from. Thinking the hand comes under the ball why not do it as a drill? I believe the "hello elbow" also came out of this thinking regarding pulling up on the ball and continuing through right up to your ear. If you are throwing the ball near the back hip you can't pull up on it. Physically impossible.