muck vs spunk

muck

noun
  • Semen. 

  • Heroin. 

  • Soft (or slimy) manure. 

  • The pile of discarded cards. 

  • Anything filthy or vile. Dirt; something that makes another thing dirty. 

  • Grub, slop, swill 

  • Slimy mud, sludge. 

verb
  • To manure with muck. 

  • To shovel muck. 

  • To vomit. 

  • To do a dirty job. 

  • To pass, to fold without showing one's cards, often done when a better hand has already been revealed. 

spunk

noun
  • Semen. 

  • An attractive person (normally male). 

  • Touchwood; tinder. 

  • Courage; spirit; mettle; determination. 

verb
  • To ejaculate. 

  • To waste (money etc.). 

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