50 Popular English Idioms to Sound Like a Native Speaker

22. RUNNING ON FUMES: to continue to stay awake when feeling exhausted

• 
  I’m sorry, but I’ve got to go home now. I haven’t slept for twenty hours and I’m running on fumes.
  

23. SOLD ME OUT: to snitch on someone, or let their secret out

• 
  I asked you to keep it to yourself! I can’t believe you sold me out, I trusted you!
  

24. YOU SOLD ME (ON SOMETHING): you convinced me of something, because you were persuasive

• 
  OK, you’ve sold me. I’ll go to the match with you.
  

25. BLEW ME AWAY: when something blows you away, you’re extremely impressed by it

• 
  The exhibition just blew me away. I’d never seen so many beautiful paintings before.
  

26. BLOW SMOKE: to exaggerate or say things that aren’t true to make you seem better/ more knowledgeable than in reality

• 
  I’m not blowing smoke. I have honestly read War and Peace by Tolstoy.
  

27. CRY WOLF: to call for help when you don’t need it

• 
  Do you think Peter is in trouble or is he just crying wolf?
  

28. COULDN’T CARE LESS: used to express total lack of interest in something

• 
  That man stole a bottle of wine from the shop.
  
• 
  Oh, really? I couldn’t care less.
  

29. BE CHUFFED TO BITS: to be pleased and happy

• 
  Hey, thanks for the present! I’m chuffed to bits.
  

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30. FEELING UNDER THE WEATHER: to be ill or unable to do regular activities

• 
  I think I’m going to have to take the day off work. I feel quite under the weathertoday.