A person who is particularly grouchy after a mid-afternoon, or a post-work nap, where the being wakes up in the later hours of the day where the sun has set, and the moon has been suspended in the sky.
Were-hole: "What's for dinner?!"
Were-victim: "Dinner was over two hours ago, it's 7:30"
Were-hole: "Sorry for snapping, I must have turned into a
Were-hole during my nap."