off the chain vs shocking

off the chain

prep

  • Free from work or direct supervision. 

  • Crazy and exciting; delirious and wild. 

shocking

adj

  • Inspiring shock; startling. 

  • Unusually obscene or lewd. 

  • Extremely bad. 

noun

  • The application of an electric shock. 

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