Here are some common idiomatic expressions in life.

A slap on the wrist

If you get a slap on the wrist, you get a mild punishment.

A taste of your own medicine

You get a taste of your own medicine when you are mistreated the same way you mistreat others.

A toss-up

A toss-up is a result that can go either way.

Actions speak louder than words

There is no point in talking; you have to do.

Add fuel to the fire

To add fuel to the fire is to make a bad situation worse.

Against the clock

When you work against the clock, you are short on time.

All bark and no bite

This expression is used to refer to someone who is threatening but not interested in engaging in a fight.

All Greek to me

If something is all Greek to you, you cannot understand it at all.

All in the same boat

When all are in the same boat, they face the same challenges.

An arm and a leg

If something costs an arm and a leg, it is very expensive.

An axe to grind

When you have an axe to grind with someone, you have a dispute with them.

Apple of one’s eye

If somebody is an apple of your eye, you cherish them above all others.

A high as a kite

If something flies as high as a kite, it is high up in the sky.

At the drop of a hat

If you do something at the drop of a hat, you do it immediately.