Some amazing Idioms that can help you speak like a native English speaker Fed up to the back teeth Meaning: This idiom is used to show that frustration has slowly built up over time. At first it was just annoying, but the more it happens and the angrier you get. You have now had enough. That is when you should use this idiom!  You can skip “to the back teeth” and just say you are fed up.   Example: I’m fed up to the back teeth of my boss. He always gives me extra work. My friend is always late. I am fed up of always waiting around for her. Studying all the time is too hard. I am fed up to the back teeth with it. At my wit's end   Meaning: When you reach your wits’ end, it means you are about to explode. You are trying to keep your cool but it’s getting too difficult to stay calm. This idiom can also be used to say you are worried about something. You are very close to breaking down and crying because of all the stress.   Example: I can’t find my passport anywhere. I am at my wits’ end looking for it. Did you hear anything? I am at my wits’ end waiting for an update. I am at my wits’ end with this project. I can’t wait for it to be over. Had it up to here   Meaning: If you have had it up to here with something, it means that that thing has made you very angry. It is a little similar to saying you have had enough of something because it is making you so angry. This idiom is almost always used with a gesture. You place your hand on your forehead to express the limit you have reached. Check the video for details about this.   Example: I’ve had it up to here with all your rules. The train is always late. I have had it up to here with all this waiting. It takes a lot to get me mad, but I have had it up to here with your attitude. Throw a fit     Meaning: This idiom is perfect for people who have absolutely lost it .They are so angry that they totally lose control. We often use this expression to talk about other people but sometimes