oh my heck vs rah

oh my heck

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

rah

intj
  • An expression of frustration or anger. 

  • An expression of surprise. 

  • An exclamation of encouragement. 

  • An expression of admiration. 

adj
  • Posh. 

noun
  • A person (especially a student) with a posh accent who looks down on those who are "common". 

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