AFC vs love-shy

AFC

name

  • Automatic Frequency Control (radio & TV technics) 

love-shy

adj

  • Ineffectual at courtship or attaining sexual intercourse. 

noun

  • A person, especially a man, who is ineffectual at courtship. 

How often have the words AFC and love-shy occurred in a corpus of books? (source: Google Ngram Viewer )