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Random
100

Idioms are a piece of cake, once you learn them.

To be easy (to understand or do)
100

The car was really cheap. What a steal!

To be really cheap
100

I can't go into work today, I'm feeling under the weather.

To feel sick or bad
100

She always wakes up at 6am, she's such an early bird.

Someone who is always early (awake or arriving)
100

Don't forget your umbrella, it's raining cats and dogs out there!

To be raining very hard

200

She spilled the beans about her affair with John.

To reveal a secret

200

We had to break the bank to pay for that vacation.

To spend too much money

200

She just totally blew me away with her singing.

To be extremely impressed

200

When he moved from the countryside to the big city, he felt like a fish out of water.

To be in an uncomfortable and/or new situation.
200

On my first day at work, I was excited to hit the ground running.

To start something with a lot of enthusiasm

300

You left us in a real pickle when you left the concert without telling us.

To be in a difficult situation

300

That designer bag cost me an arm and a leg!

To be very expensive

300

Once the dust had settled after the fight, we were friends again.

To calm down
300

My brother's black eye was the elephant in the room, when he didn't tell us anything about how it happened.

An obvious problem that's being ignored.

300

As a child time seemed to pass in a blink of an eye.

To go by/happen quickly

400

I'm disappointed I didn't get the job, but that's just the way the cookie crumbles.

That's the way life is

400

You bet your bottom dollar, I passed that exam!

To be sure of something; to be certain

400

He did not expect his book to do so well, the award nomination came out of the blue for him.

To be unexpected

400

She let the cat out of the bag when she told us about the surprise party.

To reveal a secret

400

I don't know how we will pay the bills if you quit your job, but we will cross that bridge when we get there.

To deal with a problem when it arrives.

500
I'm applying for several jobs because I don't want to put all my eggs in one basket.
Don't rely on a single option
500

This investment is a bit risky, but it could be a real cash cow.

A good source of income

500

The new fashion style has taken the whole world by storm.

to quickly become popular

500

She decided to take the bull by the horns and solve the problem herself.

To take on a problem directly.

500

I tried to write my paper all night, but I felt like I was just spinning my wheels.

To put in effort without any progress