Angover

The terrible feeling you wake up with after a night of being an angry dick, yelling at loved ones or friends in a blind rage. Kind of like a hangover, but caused from being intoxicated with anger. May or may not involve the consumption of alcohol.

Beth: What's wrong, Charles?
Charles: I have a massive angover.

Beth: What happened?
Charles: I called my sister a bitch last night and told my friends that they're all selfish pricks. Now I have a splitting headache and I feel super guilty.

Beth: Are you gonna apologize?
Charles: No.