Piece of Cake
Easy
Cost an arm and a leg
Very expensive
Takes two to tango
One person isn't responsible, two people are involved.
Raining cats and dogs
Heavy Rain
Couch Potato
Lazy person
Hit the Sack
Go to sleep
Give someone the cold shoulder
Ignore someone
Get a taste of your own medicine
Get treated the way you were treated (negative context)
Bigger fish to fry
More important things to take care of or focus on.
Under the weather
Feeling sick
Let the cat out of the bag
Reveal a secret
Go back to the drawing board
Start over
Speak of the devil
Person you just talked about showed up
On thin ice
One more mistake and there will be trouble
Take a rain check
Postpone a plan
Bite the Bullet
Get something over with
Beat around the bush
Avoid what you mean or what you want to say
Call it a day
Stop working on something
Once in a blue moon
Something that happens very infrequently.
To get the attention or praise that someone else deserves or thought they would get
to allow (someone who has been caught doing something wrong or illegal) to go without being punished
Fish out of water
To be out of your comfort zone.
Take it with a grain of salt
Don’t take it too seriously.
You can say that again
That’s absolutely true.