Body Part
Animal
Everyday
Everyday 2
Random
100

See eye to eye

To agree

100

bull in a china shop

Someone who is clumsy 

100

A grey area

Something is unclear 

100

Get a kick out of it

Really enjoy something

100

Best thing since sliced bread

good invention or idea


200

Giving the cold shoulder

ignoring someone

200

A little birdie told me

Someone told me a secret

200

A rip-off

too expensive 
200

Get your act together

behave properly

200

Devils advocate

to present a counter argument 

300

Slipped my mind

Forgot about something

300

Cat got your tongue?

Why aren't you talking

300
Add fuel to the fire

Make a situation worse 

300

Have mixed feelings

unsure of how you feel

300

Kill two birds with one stone

get two things done at once


400
Play it by ear

improvise

400

Fish out of water

Somewhere you do not belong

400

Cool as a cucumber

staying calm under stress
400
In hot water

be in trouble

400
Once in a blue moon
Happens rarely
500
It cost an arm and a leg
it is expensive
500

Raining cats and dogs

It is raining really hard
500

Down to the wire

at the last minute
500

Miss the boat

Miss your chance

500

Take it with a grain of salt

To not take something too seriously