I usually call intimidation when a player deliberately stands in front of the player with the ball instead of making an attempt to defend. It's different to all 4 players in the circle cramped under the ring, its when a defender could defend but instead stands either facing or with her back to a shooter. Does that make sense? Also I've called it when a player with the ball pretends to throw the ball into the face of a defender in an attempt to get her to move away.

If you are a defender, then you are allowed to stand with your back to the shooter so long as they have room to bring their arms down behind you. often it's the only way you can 'defend' the rebound if the shooter is too close for you to hold your 3 feet. I made a point of asking an umpire about it once because I saw that others were doing it and didn't think it was OK. But I can see how there would be a fine line between doing that to defend the rebound and deliberately doing it as a way of intimidation. the things I've seen some women do are unbelievable.