Tommy vs monthly friend

Tommy

name

  • A diminutive of the female given name Thomasina. 

  • A diminutive of the male given name Thomas. 

noun

  • Any common soldier; a member of the rank and file. 

  • A lesbian. 

monthly friend

noun

  • The menstrual period. 

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