Level 1
Level 2
Level 3
Level 4
Level 5
100

A hot potato

Speak of an issue which many people are talking about and which is usually disputed

100

At the drop of a hat

Meaning: without any hesitation; instantly.

100

Beat around the bush

Not speaking directly about the issue.

100

Burn the midnight oil

To work late into the night

100

Cry over spilt milk

When you complain about a loss from the past

200

A penny for your thoughts

A way of asking what someone is thinking

200

Back to the drawing board

it's time to start all over

200

Best of both worlds

All the advantages.

200

Can't judge a book by its cover

Cannot judge something primarily on appearance.

200

Curiosity killed the cat

Being Inquisitive can lead you into an unpleasant situation

300

Actions speak louder than words

Actions speak louder than words

300

Ball is in your court

It is up to you to make the next decision or step

300

Best thing since sliced bread

A good idea or plan.

300

Caught between two stools

When someone finds it difficult to choose between two alternatives

300

Cut corners

When something is done badly to save money

400

Add insult to injury

To further a loss with mockery or indignity; to worsen an unfavorable situation

400

Barking up the wrong tree

Looking in the wrong place. Accusing the wrong person

400

Bite off more than you can chew

To take on a task that is way to big.

400

Costs an arm and a leg

very expensive

400

Cut the mustard

To succeed; to come up to expectations; adequate enough to compete or participat

500

An arm and a leg

An arm and a leg

500

Be glad to see the back of

Be happy when a person leaves.

500

Blessing in disguise

Something good that isn't recognized at first

500

Cross that bridge when you get there 

Deal with a problem if and when it becomes necessary, not before.

500

Devil's Advocate

To present a counter argument