namby-pamby vs otaku

namby-pamby

noun
  • One who is insipid, sentimental, or weak. 

  • Talk or writing which is weakly sentimental or affectedly pretty. 

verb
  • To coddle. 

adj
  • Lacking vigor or decisiveness; spineless; wishy-washy. 

  • Insipid and sentimental. 

otaku

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

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