To know upfront

Example

You should know upfront this is not a love story

Does not hold water

Example

The subject to be discussed does not hold water, it is too theoretical

Die laughing - a belly laugh

Example

A healthy dose of belly laughs, just 15 minutes a day, is good for your heart and relieves stress

Beggars can't be choosers

Example

I would have preferred a rewarding job rather than this one so boring but i suppose beggars can't be choosers

Things did not go your way

Example
When things didn't go your way, you broke it. I come from a generation of women that valued marriage

To be seed (sport)

Example
After the Olympics, Djokovic entered the US Open as the third seed

On the safe side

Example
Disable any automatic updates during installation, put yourself on the safe side, it's better to update your working system after process installation

To look for a needle in a haystack

Example

When someone get lost in the rainforest it's like looking for a needle in a haystack

To grope in the dark

Example

Police statements are still inconsistent, they are groping in the dark

Tighten one's belt

Example

Italy wonders where and how to tighten her belts to avoid bankruptcy

Run of the mill

Example

Bezos' mansion is certainly not run of the mill

Feelings were hurt

Example

With that reckless statement their feelings were hurted

Dead serious

Example

I am dead serious! Stop mocking my little brother!

To take for a ride

Example
I have been taken for a ride on a number of occasions during my life, eventually I  have learnt the lesson

Coat of varnish

Example
Sometimes an old piece of furniture just needs a new coat of paint or varnish