Christ on a raft vs rah

Christ on a raft

intj
  • Synonym of Christ on a bike 

rah

intj
  • An expression of admiration. 

  • An expression of surprise. 

  • An exclamation of encouragement. 

  • An expression of frustration or anger. 

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 Christ on a raft and rah occurred in a corpus of books? (source: Google Ngram Viewer )