ragging vs so-so

ragging

noun
  • The act of one who rags or teases. 

  • An initiation in educational institutions (e.g. universities) usually involving harassment by upperclassmen. 

so-so

adj
  • Neither good nor bad; tolerable, passable, indifferent. 

adv
  • Neither very well nor very poorly. 

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