mob vs pig pile

mob

noun
  • A large or disorderly group of people; especially one bent on riotous or destructive action. 

  • A mob cap. 

  • See also: Mob, Mafia (proper noun senses for specific ones) 

  • A group of animals such as horses or cattle. 

  • mobile phone 

  • See also: Mob (the masses) 

  • A group of kangaroos. 

  • A mafia: a group that engages in organized crime. 

  • A non-player character, especially one that exists to be fought or killed to further the progression of the story or game. 

  • A group of Aboriginal people associated with an extended family group, clan group or wider community group, from a particular place or country. 

  • A flock of emus. 

verb
  • To wrap up in, or cover with, a cowl. 

  • To crowd around (someone), sometimes with hostility. 

  • To crowd into or around a place. 

pig pile

noun
  • A disorderly pile of people formed by jumping upon a victim. 

verb
  • To jump into such a pile. 

  • To cause a group of people to lie in a pile upon another, originally as a punishment to the victim on the bottom. 

  • To act similarly with regard to residential density: to live or cause to live in high-density settlements. 

How often have the words mob and pig pile occurred in a corpus of books? (source: Google Ngram Viewer )