No, sorry, I didn't explain it clearly.
I throw my disk at you. You, being smart and holding your disk, hit your right mouse button to block. My disc hits you while your block is up, so it goes into deadly mode -- flying straight in the direction you were looking when you blocked it.
If, while flying straight, it hits me, I die instantly. If it bounces off the ground and then hits me, I take normal damage. After bouncing around a bit, it will return to my, and gameplay goes on as normal.
Same the player blocking AIs discs while in single player -- IF you have a gold Power Block subroutine installed.