The bee's knees.
The best.
Squash the beef.
To end a conflict by apologizing (or fighting).
Bootlicker
Someone who always praises, defends, and supports people with authority or power.
It's raining cats and dogs.
It is raining very heavily.
Cutting corners.
To do something quickly and poorly to save time or money.
Kick the bucket.
To die.
Jumping through hoops.
When you have to do a lot of complicated or annoying things to get something you want.
Bob's your uncle.
It's done. Often used after a set of simple instructions.
Hang in there.
Don't give up.
Don't put all your eggs in one basket.
Don't risk everything on one bet or decision.
Out of sight, out of mind.
You'll forget people or things that are no longer visible or present.
Costs an arm and a leg.
An extremely high price for something.
Bite the bullet.
To do something that is unpleasant because you know need to do it eventually.
Speak of the devil.
The person you were talking about suddenly shows up.
A blessing in disguise.
A good thing that seemed bad a first.
Catch 22
A problem with no solution; a situation that can't be resolved.
Kill two birds with one stone.
The take care of two problems at the same time.
You live and you learn.
To make a mistake.
We'll cross that bridge when we come to it.
Don't worry about that problem until it happens.
Read between the lines.
To find the hidden meaning in a statement.
Let the cat out of the bag.
To give away a secret.
Beating around the bush.
To avoid or delay saying something uncomfortable.
Break a leg.
Good luck.
Miss the boat.
To lose an opportunity because you acted too slowly.