A phrase which has a meaning that is commonly understood by speakers of the language, but whose meaning is often different from the normal meaning of the words is called an idiom.
Two peas in a pod If things or people are like two peas in a pod, they look very similar or are always together. Contributor : Unknown .....................................................................................................................
Tough nut to crack If something is a tough nut to crack, it is difficult to find the answer or solution. When used about a person, it means that it is difficult to get them to do or allow what you want. 'Hard nut to crack' is an alternative. Contributor : Unknown .....................................................................................................................
Tough cookie A tough cookie is a person who will do everything necessary to achieve what they want. Contributor : Unknown .....................................................................................................................
Too many cooks spoil the broth This means that where there are too many people trying to do something, they make a mess of it. Contributor : Unknown .....................................................................................................................
There's no such thing as a free lunch This idiom means that you don't get things for free, so if something appears to be free, there's a catch and you'll have to pay in some way. Contributor : Unknown .....................................................................................................................