Well, I can not say whether your cat has it or not. :) But I believe it is when you try to pull out the end of the ball from the center, but the end is not nicely placed or wound properly, so when you pull it out, instead of a nice, smooth strand of yarn, you get a big tangled mass coming from the center of the ball, which you then have to untangle, and I am guessing depending on its size, rewind befor