fag vs sweat blood

fag

verb
  • To make exhausted, tired out. 

  • To droop; to tire. 

noun
  • A homosexual man, especially (usually derogatory) an especially effeminate or unusual one. 

  • In textile inspections, a rough or coarse defect in the woven fabric. 

  • An annoying person. 

sweat blood

verb
  • To work very hard. 

  • To be extremely anxious. 

How often have the words fag and sweat blood occurred in a corpus of books? (source: Google Ngram Viewer )