There's been some cold bitches in the bulldog world that dogmen/women took a chance on as brood that wound up producing some great dogs.....
don't know anything about the terminology on game bred dogs...but cold bitch probably means a bitch that is so inbred that she is a dud...could never be a champion...probably tired blood (inbreeding depression)...but this female when bred with the right males will produce top dogs...
I would rather breed or own one of these cold bitches that comes from the very best than to breed a top of the line champion that is scatter bred with a few top dogs in the back ground amongst a bunch of average dogs and dogs that are not proven...
or am I way off base with what a cold bitch is???