She is the apple of his eye.
What is: he adores her?
Sometimes it's better to let sleeping dogs lie.
What is: sometimes it better to leave things alone?
He was being pig headed.
What is: he was being stubborn?
It rings a bell.
What is: it is familiar?
Let's call it a day.
What is: let's stop working on that?
They sold like hot cakes.
What is: they sold very well?
That was a piece of cake!
What is: something that was easy for me?
He's a one trick pony.
What is: he does not have a lot of skills?
I'm fit as a fiddle!
What is: I'm very fit?
Break a leg at your performance!
What is to do well at your performance?
It's not my cup of tea.
What is: it's not interesting to me?
She was cool as a cucumber.
What is: she was very relaxed?
She weaseled out of her chores.
What is: she did not follow through on her chores?
She had to face the music.
What is: she had to accept the unpleasant consequences?
It's time to hit the sack.
What is: it's time to go to bed?
She has a bun in the oven.
What is: she is going to have a baby?
They are a dime a dozen.
What is: they are commonplace?
She let the cat out of bag.
What is: she told a secret?
He had to change his tune.
What is: he had to change his opinion or attitude?
Don't beat around the bush.
What is: avoid saying what you mean because it is not comfortable?
He is the big cheese.
What is: he is the big boss?
It takes two to tango.
What is: it takes two to have an argument or conflict?
He got the lion's share.
What is: he got the biggest portion?
It was music to my ears!
What is: it was something I wanted to hear?
You have to take her with a grain of salt.
What is: she is not always exactly right?