Raining cats and dogs
It is pouring
Hold your horses
This is a piece of cake
It is so easy
Feeling sick
I bit off more than I can chew
I am feeling overwhelmed because I have too much to do
Don't let the cat out of the bag
Do not tell the secret
Heart of gold
You are very kind, caring, compassionate
Break a leg
Good luck
Dirt cheap
Inexpensive
I need to sleep on it
I need some time to think before making a decision
You're a couch potato
You are lazy
Pulling my leg
You are teasing me
Hit the books
You need to study
I am in hot water
I am in trouble
I am all ears
I am listening
In one ear and out the other
On the ball
You are focused and doing the right thing
You have a green thumb
You are good at gardening or keeping plants alive
I put my foot in my mouth
I said something I shouldn't have
I am all tied up
I am very busy
Zip your lips
Be quiet
This is the last straw
This is the last chance
It is better late than never
It is better to do something late, than to not do it at all
You are on top of the world
You are feeling very happy