A state of anger and resentment toward someone or something.
You've had a mad on at me since we met. 2015, Zachary Klein, Two Way Toll, →ISBN:
Walking mail men are fair game for animals, kids and any one with a mad on for the Post Oflice. 2009, W. A. Franklin "Dub", Dining with Dub, →ISBN, page 36:
And Ben was always hard to talk with when he had himself a mad on. 2014, Penelope Williamson, The Outsider, →ISBN, page 109: