break a leg
good luck
I'll keep my fingers crossed for you.
to hope strongly that something will happen, good luck!
Under the weather
Sick
We see eye to eye.
to agree with each other
On the ball
Doing a good job / aware of any changes or developments and quick to react to them
The ball is in your court.
It's your decision
hit the roof
to become extremely angry
It's on me.
I'll pay for it.
You can't judge a book by its cover.
This person or thing may look bad, but it's good inside
Hit the sack
Go to sleep
I'll keep in touch.
to communicate or continue to communicate with someone by using a phone or writing to them
Saving for a rainy day
Saving money for later
Once in a blue moon
Rarely
a dime a dozen
Something very common
Give someone the cold shoulder
Ignore someone
A perfect storm
the worst possible situation
call it a day
stop working on something
pull someone's leg
to tell someone something that is not true, as a joke
Miss the boat
It's too late
Take it with a grain of salt.
Don’t take it too seriously
There are other fish in the sea.
It's OK to miss this opportunity. Others will arise.
hold your horses
wait a moment
I'm in hot water.
To be in or get into a difficult situation.
a fish out of water
in a strange situation
Why do you have such a long face?
Why do you look sad?
It's raining cats and dogs.
It's raining hard
Take a rain check
Postpone a plan
It's not my cup of tea.
not the type of thing that you like:
break the ice
do something to make people feel more comfortable
Spill the beans
Give away a secret
We pigged out.
to eat a lot or too much
It's a piece of cake.
It's easy
cost an arm and a leg
very expensive
Let the cat out of the bag
Give away a secret
hit the books
study hard