Icing on the cake.
Make something worse.
Make something better.
Shake a leg!
Slow down!
Hurry up!
Let the cat out of the bag!
Reveal a secret.
Keep a secret.
Time flies.
Time passes quickly.
Time passes slowly.
On Cloud 9
To be very happy/excited.
To be very sad/angry.
Under the weather.
Feeling good.
Feeling sick.
A fish out of water.
To feel uncomfortable.
To feel very good.
Penny for your thoughts.
Ask what someone is saying.
Ask what someone is thinking.
Break The Ice.
Start a conversation.
End a conversation.
In the nick of time.
Just in time, the last moment.
The name of time.
It's raining cats and dogs.
Light rain.
Heavy rain.
Spill the beans.
To keep a secret.
To tell a secret.
In hot water.
To be in trouble.
To be fine.
Ants in your pants!
Comfortable
Uncomfortable
Cost an arm and a leg.
To be expensive.
To be very expensive.
Hit the nail on the head.
To solve a problem.
To make a problem.
Bite the bullet.
To be brave.
To run away.
A piece of cake.
Very difficult.
Very easy.
Bite off more than you can chew.
To do very little work.
To do too much work.
The 800 pound gorilla
The strongest person in a situation.
The weakest person in a situation.