Professional/work/study
Give someone their cards
If someone is given their cards, they lose their job.
Bull-headed
If you're a bull-headed, you're stubborn or inflexible.
Cut your losses
If you cut your losses, you avoid losing any more money than you already have by getting out of a situation before matters worsen.
Cherry pick
If people cherry pick, they choose things that support their position, while ignoring things that contradict it.
Blood is thicker than water
This idiom means that family relationships are stronger than other
Have your work cut out
If you have your work cut out, you are very busy indeed.
Wild goose chase
A wild goose chase is a waste of time- time spent trying to do something unsuccessfully.
Money talks
This means that people can convey many messages with money, and many things can be discovered about people by observing the way they use their money.
Cut the mustard
If somebody or something doesn't cut the mustard, they fail or it fails to reach the required standard.
Put your foot down
When someone puts their foot down, they make a firm stand and establish their authority on an issue.
Busman's holiday
A busman's holiday is when you spend your free time doing the same sort of work as you do in your job.
Social butterfly
Someone who can move easily within many different social groups is a social butterfly.
Scot free
If someone escapes scot free, they avoid payment or punishment. 'Scot' is an old word for a tax, so it originally referred to avoiding taxes, though now has a wider sense of not being punished for someone that you have done.
Like peas in a pod
If people or things are like peas in a pod, they look identical
Brass neck
(UK) Someone who has the brass neck to do something has no sense of shame about what they do.
Movers and shakers
Dynamic, important people who can get things done quickly and are influential are the movers and shakers.
Big fish in a small pond
A big fish in a small pond is an important person in a small place or organisation
Feel the pinch
If someone is short of money or feeling restricted in some other way, they are feeling the pinch.
Tough cookie
A tough cookie is a person who will do everything necessary to achieve what they want.
Split hairs
If people split hairs, they concentrate on tiny and unimportant details to find fault with something.
Give away the store
(USA) If someone gives away the store, they say or do something that makes their position in negotiations, debates, etc, much weaker.
Bee's knees
If something is the bee's knees, it's outstanding or the best in its class.
Make ends meet
If somebody finds it hard to make ends meet, they have problems living on the money they earn.
Stew in your own juices
If you leave someone to stew in their own juices, you leave them to worry about the consequences of what they have done wrong or badly.
Knit your brows
If you knit your brows, you frown or look worried.