"Hard Worms"

My conversation with Jacob this afternoon.
J: in reference to some leftovers "Momma, you can give that food to Murphy.  He likes dog food, but sometimes he needs people food.  He has hard worms."
Me: "oh, really, how do you know?"
J:  "Cause that's what Daddy said.  But Momma, you and Weeah have soft worms."

So - there you have it.  The dog has "hard worms" and the Mom and sister have "soft worms".