Foods
Animals
Body parts
Body parts II
Nature
100

It's a piece of cake

It is very easy

100

It's raining cats and dogs

It's raining heavily

100

Give me a hand

Please help me

100

to know something by heart

to know something by memorizing it

100

barking up the wrong tree

making a mistake

200

to be a couch potato

to be lazy and watch TV a lot from your sofa

200

I smell a rat

I can tell that something is wrong or someone has done something wrong.

200

to keep an eye on

to watch or take care of something or someone

200

It costs an arm and a leg.

It is very expensive and costs a lot.

200

under the weather

to be sick

300

You are the apple of my eye

You are very special to me

300

to kill two birds with one stone

to accomplish two different things at one time

300

to be all ears

to listen very carefully

300

Your heart is in the right place.

You mean well and want to do the right thing.

300

once in a blue moon

happens very rarely

400

to bite off more than you can chew

to try to do too much or more than you can handle
400

let the cat out of the bag

to share a secret that wasn't supposed to be shared

400

You have your head in the clouds.

You are daydreaming

400

You are all thumbs.

You are clumsy

400

beat around the bush

to never reach the point of a problem

500

being like two peas in a pod

being exactly alike

500

let sleeping dogs lie

leave a person alone if they can cause you trouble

500

two heads are better than one

working together is better than working by yourself

500

I'm on my last leg

I'm very tired

500

the grass is always greener on the other side of the fence

you always want what you don't have