If events reach a crisis point, they come to a head.
If something comes to bear on you, you start to feel the pressure or effect of it.
If someone comes to call, they respond to an order or summons directly.
If you come to grips with a problem or issue, you face up to it and deal with it.
If someone comes to heel, they stop behaving in a way that is annoying to someone in authority and start being obedient.
If things come up roses, they produce a positive result, especially when things seemed to be going badly at first.
(UK) If someone comes up smelling of roses, they emerge from a situation with their reputation undamaged.
When someone is said to have 'come up trumps', they have completed an activity successfully or produced a good result, especially when they were not expected to.
If you're prepared to do something come what may, it means that nothing will stop or distract you, no matter how hard or difficult it becomes.
If something comes with the territory, it is part of a job or responsibility and just has to be accepted, even if unpleasant.
If something comes with the territory, especially when undesirable, it is automatically included with something else, like a job, responsibility, etc.('Goes with the territory' is also used.)
It is the temperature range in which the body doesn't shiver or sweat, but has an idiomatic sense of a place where people feel comfortable, where they can avoid the worries of the world. It can be physical or mental.
When you connect the dots, you understand the connections and relationships.
If someone has the constitution of an ox, they are less affected than most people by things like tiredness, illness, alcohol, etc.
If you cook someone's goose, you ruin their plans.
If people cook the books, they keep false accounts to make money illegally or avoid paying tax.
(USA) If you're cooking with gas, you're working very efficiently.
To act fine when you a actually scared or nervous
If you leave someone to cool their heels, you make them wait until they have calmed down.
(USA) A very long time, as in 'I haven't seen her in a coon's age!'
If a business is dominant in an area and unlikely to be challenged by other companies, it has cornered the market.
A couch potato is an extremely idle or lazy person who chooses to spend most of their leisure time horizontal in front of the TV and eats a diet that is mainly junk food.
If you are very hungry, you could eat a horse.
If you couldn't give two hoots about something, you don't care at all about it.
If people cannot sleep, they are advised to count sheep mentally.
When people count their blessings, they concentrate on all the good things in their lives instead of the negative ones.
(USA) A country mile is used to describe a long distance.
If you cover all the bases, you deal with all aspects of a situation or issue, or anticipate all possibilities. ('Cover all bases' is also used.)
If you use a sledgehammer to crack a nut, you apply too much force to achieve a result. ('Jackhammer' is also used.)
The crack of dawn is very early in the morning.
If you crash a party, or are a gatecrasher, you go somewhere you haven't been invited to.
The cream of the crop is the best there is.
A good person or idea cannot go unnoticed for long, just as cream poured in coffee or tea eventually rises to the top.
If a person said "I hate camping. I don't like giving up my creature comforts." the person would be referring, in particular, to the comfortable things he/she would have at home but not when camping. At home, for example, he/she would have complete shelter from the weather, a television, a nice comfortable warm bed, the ability to take a warm bath or shower, comfortable lounge chairs to relax in and so on. The person doesn't like giving up the material and psychological benefits of his/her normal life.
The crème de la crème is the very best of something.
(USA) One who always looks at the bad side of things and is morbid or gloomy. In olden days crepe was hung on the door of a deceased person's home.
If someone cries crocodile tears, they pretend to be upset or affected by something.
Someone who is very dishonest is as crooked as a dog's hind leg.
People say this to show how sincere their promise is.
When people cross swords, they argue or dispute. This expression is used when some groups accuse each other for non-adherence to norms. Actually no sword is used but the tempo of the argument is high enough to cause worsening of the already bad situation. It is a tussle (vehement struggle without use of arms) between the parties to establish supremacy.
If you will cross that bridge when you come to it, you will deal with a problem when it arises, but not until that point
If someone has a cross to bear, they have a heavy burden of responsibility or a problem that they alone must cope with.
When you are crossing the Rubicon, you are passing a point of no return. After you do this thing, there is no way of turning around. The only way left is forward.
When people, companies, etc, have to make an important decision that will have a considerable effect on their future, it is crunch time.
If someone cries wolf, they raise a false alarm about something.
If you cry your eyes out, you cry uncontrollably.
A cry-baby is a person who gets emotional and cries too easily.
Is an issue or a problem, etc, is a cuckoo in the nest, it grows quickly and crowds out everything else.
(UK) To show love to gain something from someone
(UK) If something is a bit of a curate's egg, it is only good in parts.
If something is very frightening or disturbing, it curdles your blood