bored or unhappy, especially with a situation that has continued for too long You look fed up. What's the matter? fed up with somebody/something People are fed up with all these traffic jams. In the end, I just got fed up with his constant complaining. I wish he'd get a job. I'm fed up with it (= with the situation). fed up with doing something I'm fed up with waiting for her. I’m fed up to the back teeth(= very fed up) with hearing about your problems.