Male intact ferrets are called hobs; female intact ferrets are jills. A spayed female is a sprite, and a neutered male is a gib. Ferrets under one year old are known as kits. kits/pups are considered adult at age 8 to 10 months for all practical purposes. My baby ferrets were called: Jack, Buster, Mokey, T.J., Grace, Trinitiy, Dewey (of course), August, Melvin, Rupert and Tweety Bird.