To add insult to injury’ – to make a situation worse.

“To add insult to injury the car drove off without stopping after knocking me off my bike.”

13. ‘You can’t judge a book by its cover’ – to not judge someone or something based solely on appearance.
“I thought this no-brand bread would be horrible; turns out you can’t judge a book by its cover.”

14. ‘Break a leg’ – means ‘good luck’ (often said to actors before they go on stage).
“Break a leg Sam, I’m sure your performance will be great.”

15. ‘To hit the nail on the head’ – to describe exactly what is causing a situation or problem.
“He hit the nail on the head when he said this company needs more HR support.”

16. ‘A blessing in disguise’ – An misfortune that eventually results in something good happening later on.

17. ‘Call it a day’ – Stop working on something

18. ‘Let someone off the hook’ – To allow someone, who have been caught, to not be punished.

19. ‘No pain no gain’ – You have to work hard for something you want.

20. ‘Bite the bullet’ – Decide to do something unpleasant that you have avoiding doing.

21. ‘Getting a taste of your own medicine’ – Being treated the same unpleasant way you have treated others.

22. ‘Giving someone the cold shoulder’ – To ignore someone.

23. ‘The last straw’ – The final source of irritation for someone to finally lose patience.

24. ‘The elephant in the room’ – A matter or problem that is obvious of great importance but that is not discussed openly.

25. ‘Stealing someones thunder’ – Taking credit for someone else achievements.