So in English when we say someoneis "calling it quits" it means that they've decided to NOT do something anymore. It, it means that they've decided to quit. I'm not calling it quits, that's not what this video is about. But imagine you have a favourite soccer player and one day you open the newspaper up and it says that they're calling it quits. That would mean that they've decided not to play soccer anymore and you'd probably be pretty sad. Or maybe you have friend whose brother fixes cars and you say to your friend, "Hey. I need the brakes on my car fixed, can I call you brother?" And he might say, "Oh no, he's calling it quits. He's not doing that anymore." So calling it quits literally means to quit doing something.