repulsion vs yuck factor

repulsion

noun
  • An extreme dislike of something, or hostility to something. 

  • The repulsive force acting between bodies of the same electric charge or magnetic polarity. 

  • The act of repelling or the condition of being repelled. 

yuck factor

noun
  • Disgusting part of the nature of something; facet or tendencies (of a thing, idea, etc) to produce a reaction of repugnance or distaste. 

  • Recycled sewer water is opposed by many sanitation agencies due to the yuck factor. 

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