hold your horses
wait a moment
break a leg
good luck
Hang in there
Don't give up
Hit the sack
Go to sleep
Under the weather
Sick
Give someone the cold shoulder
Ignore someone
It's a piece of cake
It's easy
It's raining cats and dogs
It's raining hard
Let the cat out of the bag
Give away a secret
Spill the beans
Give away a secret
The ball is in your court
It's your decision
You can't judge a book by its cover
This person or thing may look bad, but it's good inside
Beat around the bush
To avoid talking about a topic.
Once in a blue moon
Something that doesn't happen often. Example: "I remember to call my brother once in a blue moon".
Take it with a pinch of salt
Don't take it too seriously. Example: "I heard elephants can fly now, but Sam often makes up stories so I take everything he says with a pinch of salt".
