“Time flies”

“Break a leg”

A way to wish someone good luck.

“Under the weather”

Feeling slightly ill or unwell.

“Wrap one's head around something”

To understand something complicated.

“Bite off more than you can chew”

To take on too much responsibility.

“Beggars can’t be choosers”

People with no options must accept what they get.

“Bite the bullet”

To face a difficult or unpleasant situation bravely.

“Let the cat out of the bag”

To reveal a secret accidentally or intentionally.

“Once in a blue moon”

Very rarely.

“Get out of hand”

To become uncontrollable.

“When pigs fly”

Something that will never happen.

“A blessing in disguise”

Something that seems bad but turns out good.

“Beat a dead horse”

To waste time on something already decided.

“Back against the wall”

In a very difficult situation with no easy options.

“Piece of cake”

Something very easy to do.

“A dime a dozen”

Very common and easy to find; not special or valuable.

“Kill two birds with one stone”

To achieve two goals with one action.

“Actions speak louder than words”

What people do is more important than what they say.

“Take it with a grain of salt”

To not completely believe something.

“Break the ice”

To do or say something that makes people feel more comfortable in a new or awkward situation.

“Barking up the wrong tree”

To make a wrong assumption.