oh my heck vs whoa

oh my heck

intj
  • for "Hell" from "Oh my hell" or "Oh hell!" 

whoa

intj
  • Used as a meaningless filler in song lyrics. 

  • An expression of surprise. 

  • Stop (especially when commanding a horse or imitative thereof); calm down; slow down. 

verb
  • To attempt to slow (an animal) by crying "whoa". 

How often have the words oh my heck and whoa occurred in a corpus of books? (source: Google Ngram Viewer )