pigeon-hearted vs sissy

pigeon-hearted

adj
  • timid; easily frightened; chicken-hearted 

sissy

adj
  • Cowardly. 

  • Effeminate. 

noun
  • A male crossdresser who adopts feminine behaviours. 

  • An effeminate boy or man. 

  • Sister. 

  • A timid, unassertive or cowardly person. 

  • Urination; urine. 

verb
  • To urinate. 

  • To sissygasm (reach orgasm solely by penetration of the anus). 

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