mutant vs otaku

mutant

noun
  • Someone or something that seems strange, abnormal, or bizarre. 

  • That has mutated, with one or more new characteristics from a mutation. 

  • Synonym of mutex 

adj
  • Strange, abnormal, or bizarre. 

  • Of, relating to, undergoing (i.e. mutating), or resulting from change or mutation; that has undergone mutation. 

otaku

noun
  • One with an obsessive interest in something, particularly (originally derogatory) obsessive Japanese fans of anime or manga. 

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