Definition of pig noun from the Oxford Advanced Learner's Dictionary

      

    pig

     noun
    noun
    BrE BrE//pɪɡ//
     
    ; NAmE NAmE//pɪɡ//
     
    Farm animals, Domesticated mammals
     
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  1. 1   (also hog especially in North American English) an animal with pink, black or brown skin, short legs, a broad nose and a short tail which curls round itself. Pigs are kept on farms for their meat (called pork) or live in the wild. a pig farmer Pigs were grunting and squealing in the yard. see also boar, piglet, sow2, swine, guinea pig See related entries: Farm animals, Domesticated mammals
  2. 2(informal, disapproving) an unpleasant or offensive person; a person who is dirty or greedy Arrogant pig! Don't be such a pig! The greedy pig's eaten all the biscuits! She made a pig of herself with the ice cream (= ate too much). He's a real male chauvinist pig (= a man who does not think women are equal to men).
  3. 3(slang) an offensive word for a police officer
  4. Word Origin Middle English: probably from the first element of Old English picbrēd ‘acorn’, literally ‘pig bread’ (i.e. food for pigs).Extra examples The pigs were being fattened for slaughter. We cooked up a load of pasta and all made pigs of ourselves. He’s a real male chauvinist pig.Idioms
    make a pig’s ear (out) of something
     
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    (British English, informal) to do something badly; to make a mess of something
    if you buy a pig in a poke, you buy something without seeing it or knowing if it is good enough Buying from a catalogue can mean buying a pig in a poke. (British English, informal) a difficult or unpleasant thing or task I've had a pig of a day.
    pigs might fly(British English)(North American English when pigs fly)
     
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    (ironic, saying) used to show that you do not believe something will ever happen ‘With a bit of luck, we'll be finished by the end of the year.’ ‘Yes, and pigs might fly!’
See the Oxford Advanced American Dictionary entry: pig