little head vs wee-wee

little head

noun
  • The glans of the penis. 

wee-wee

noun
  • The penis. 

  • Urine. 

  • The vulva or vagina. 

  • An act of urination. 

verb
  • to urinate 

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