lad vs penile glans

lad

noun

  • The penis. 

  • A boy or young man. 

  • A groom who works with horses. 

  • A Jack the lad; a boyo. 

  • A familiar term of address for a young man. 

penile glans

noun

  • The glans penis 

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