Dear Epit,
    You asked for �Earth Idioms� in English. Here are some.
   
  �What �on earth� are you doing?� = When we add �on earth� to a question, it makes the question EMPHATIC, and usually indicates our surprise, irritation, or amusement.
�How on earth did you climb up there?� asks the Mam, to the child sitting on top of the wardrobe.
    �Down-to-earth� = practical, sensible, no-nonsense, dealing with FACTS, not theories.
  �She�s a down-to-earth woman. She doesn�t believe in horoscopes, and things like that�.
   
  �To come down to earth� = To abandon �dreams in the sky�, and FACE REALITY.
  �When Peter left University, he came down to earth with a bump, because he had to start earning some money�.
   
  �To bring someone down to earth� = To FORCE someone to abandon �dreams in the sky�, and FACE REALITY.
  �Peter had some expensive ideas on how to improve the factory, but his new Boss soon brought him down to earth�.  
   
  �Like nothing on earth.� (A colloquial expression) = HORRIBLE, awful, terrible. (It is used with verbs such as �to look; to feel; to smell; to taste; to sound).
  �Tom, you look like nothing on earth in those red trousers, that green jacket, that Panama hat, and those stupid spotted boots�.
   
  �The salt of the earth� = The BEST people on earth.
  �She will do anything, go anywhere, give anything to someone who needs help. She is the salt of the earth.
   
  �To disappear off the face of the earth� = to DISAPPEAR COMPLETELY.
  �After University, I didn�t hear anything from my best friend Bill. He just disappeared off the face of the earth�. 
   
  �To move heaven and earth� = To do EVERYTHING possible to achieve something.
  �I want to be a Pop-star! I�ll do ANYTHING! I�ll move heaven and earth to sing on TV�.
   
  �Heaven on earth� = Something EXTREMELY GOOD.
  �My Mother�s food is fantastic! Her fruit cake is heaven on earth!�
   
  �To go to earth/ground� = When someone is being followed, pursued, or stalked, and he/she HIDES in a safe refuge.
  �The actor escaped from the journalists by going to earth/ground in a house in the forest.
   
  �To run someone to earth/ground� = After a search, to DISCOVER where the escaped person is hiding.
  �The journalists eventually ran the actor to earth/ground in a house in the forest�.
   
  When something costs �the earth� = It was very, very, very EXPENSIVE!
  �Oh, darling, this diamond ring is beautiful. You must have paid the earth for it!�
   
  �The four corners of the earth� = EVERY PART of the world.
  �The Olympic athletes came to London from the four corners of the earth.�
   
  �Hell on earth� = Something which is VERY UNPLEASANT.
  �At school many bullies punched, kicked, and taunted me every day. My life was hell on earth.�
   
  �Not to have an earthly� or �Not to have an earthly chance� = To have NO POSSIBILITY of success.
  �He intends to race against Olympic Champions, but he hasn�t trained for it. He won�t have an earthly!� (�He won�t have an earthly chance!�)
   
  �No earthly reason� = NO REASON at all, (usually said in irritation).
  �There�s no earthly reason why you should give your boy-friend money. He has an EXCELLENT salary, and YOU are still at College!�
   
  �The scum of the earth� = The VERY WORST type of people.
  �The farmer starved and beat his faithful old dog. People like him are the scum of the earth�.
   
  �Follow to the ends of the earth� = To travel as far as it is POSSIBLE to go.
  �The wife loved her sailor husband very much. She was willing to follow him to the ends of the earth�. 
   
  I hope that these are of use to someone.
  Les Douglas