Something good that isn't recognized at first.
Blessing in disguise.
Crazy, demented, out of one's mind, in a confused or befuddled state of mind, senile.
Off one's rocker.
Speak of an issue (mostly current) which many people are talking about and which is usually disputed
A hot potato
A job, task or other activity that is easy or simple.
Piece of cake.
Means that something happens to you, or is done to you, that you have done to someone else.
Taste of your own medicine.
Looking in the wrong place. Accusing the wrong person.
Barking up the wrong tree.
To take the credit for something someone else did.
Steal someone's thunder.
It is up to you to make the next decision or step.
Ball is in your court.
To have no idea, do not know the answer to a question.
Your guess is as good as mine.
A visual presentation is far more descriptive than words.
Picture paints a thousand words.
Actions or communications need more than one person.
It takes two to tango.
The show has come to an end. It's all over.
Elvis has left the building.
Be happy when a person leaves.
Be glad to see the back of.
Meaning - do not disturb a situation as it is - since it would result in trouble or complications.
Let sleeping dogs lie.
Believe someone's statement, without proof.
Give the benefit of the doubt.
When someone finds it difficult to choose between two alternatives.
Caught between two stools.
This idiom means, to accomplish two different things at the same time.
Kill two birds with one stone.
Come to the point - leave out details.
Make a long story short.
To succeed; to come up to expectations; adequate enough to compete or participate.
Cut the mustard [possibly derived from "cut the muster"]
Avoiding the main topic. Not speaking directly about the issue.
Beat around the bush.
To present a counter argument.
Devil's Advocate.
An assertion that, despite one's approach seeming random, there actually is structure to it.
Method to my madness.
To go to bed.
Hit the sack / sheets / hay
You are not very good at something. You could definitely not do it professionally.
Don't give up the day job.
To work late into the night, alluding to the time before electric lighting.
Burn the midnight oil.
Everything. All of it.
Whole nine yards.
The final problem in a series of problems.
Last straw.
Very different from.
Far cry from.
To further a loss with mockery or indignity; to worsen an unfavorable situation.
Add insult to injury.
This idiom is used when something is very expensive.
Costs an arm and a leg.
Deal with a problem if and when it becomes necessary, not before.
Cross that bridge when you come to it.
A way of asking what someone is thinking.
A penny for your thoughts.
Would never like to do something.
Wouldn't be caught dead.
Cannot judge something primarily on appearance.
Can't judge a book by its cover.
This is used when someone does not want to choose or make a decision.
Sit on the fence.
This idiom means 'to hear rumors' about something or someone.
Hear it on the grapevine.
This expression is used when the person you have just been talking about arrives.
Speak of the devil!
To share information that was previously concealed.
Let the cat out of the bag.
Be optimistic, even difficult times will lead to better days.
Every cloud has a silver lining.
Someone who lacks intelligence.
Not playing with a full deck.
Meaning: without any hesitation; instantly.
At the drop of a hat.
Being Inquisitive can lead you into an unpleasant situation.
Curiosity killed the cat.
Do not put all your resources in one possibility.
Don't put all your eggs in one basket.
When something is done badly to save money.
Cut corners.
When someone understands the situation well.
On the ball.
Overwhelmed by what is happening in the moment.
In the heat of the moment.
To take on a task that is way to big.
Bite off more than you can chew.
This idiom is used to express "Don't make plans for something that might not happen".
Don't count your chickens before the eggs have hatched.
Join a popular trend or activity.
Jump on the bandwagon
A good invention or innovation. A good idea or plan.
Best thing since sliced bread.
People's intentions can be judged better by what they do than what they say.
Actions speak louder than words.
When you complain about a loss from the past.
Cry over spilt milk.
When an attempt fails and it's time to start all over.
Back to the drawing board.
Meaning: Happens very rarely.
Once in a blue moon.
Keep something away.
Keep something at bay
This means not to take what someone says too seriously.
Take with a grain of salt.
Meaning: All the advantages.
Best of both worlds.
This idiom is used to say that someone missed his or her chance.
Miss the boat.
This idiom is used to say that two (or more people) agree on something.
See eye to eye.
Do or say something exactly right.
Hit the nail on the head.
When you are extremely desperate you need to take drastic actions.
Drastic times call for drastic measures.
Meaning: Feeling slightly ill.
Feel a bit under the weather.
This means to deceive someone into thinking well of them.
Put wool over other people's eyes.