busting vs irruption

busting

noun
  • The process of something being broken or exploded. 

adj
  • Urgently needing to urinate. 

irruption

noun
  • The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion. 

  • An abrupt increase in the size of a movement or organization. 

  • An abrupt increase of an animal population. 

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