A cuntwolf is a man, not a woman. There are two definitions which often stand above others.
A cuntwolf is a man who eats dog food and hijacks city buses, only to stop in the center of a small town, leave the bus with its passengers, and hitch-hikes back home.
A cuntwolf may also be a predator of the female plumbing, both figuratively and literally.
"I met this fella the other day. He was a real cuntwolf."
"Which kind?"
"He left us in some town called Pig's Knuckle Arkansas... so the kind that eats dog food."