I'm not sure if that's the right word/spelling..anyway, I was wondering what it means when an older cat does this? I understand nursing kittens do it, and I guess it's just a habit? Kiba use to always do that when we first got her, then she stopped doing it for the longest time. Then tonight when I was patting her she started doing it again. I was kinda suprised as she hasn't done it in so long...