DM vs drank

DM

noun
  • adamsite, diphenylaminechlorarsine 

  • A Dr. Martens boot or shoe. 

  • driving motor car 

  • Coordinate terms: PM, IM 

verb
  • To Dungeon Master; to perform as a dungeon master; to run a tabletop role-playing game. 

  • To communicate by direct message, usually on a social website. 

drank

noun
  • Dextromethorphan. 

  • A drink, usually alcoholic. 

verb
  • simple past tense of drink 

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