Yes, but I think I'm the warped one for finding it so funny.

I have been trying to find a good example of "fold a to b" for you online. I don't find one. What's wrong with the universe? Consequently, I try to explain- I bet you have seen one and called it something else: You have a sheet of paper on which an image appears. The image has registers marked "A" and "B". You fold the paper so that the registers line up, effectively eliminating the middle of the image, and a different surprising image becomes apparent. Do you know what I'm talking about?