helter-skelter vs like crazy

helter-skelter

noun
  • A helical fairground slide. 

  • Confusion or turmoil. 

adv
  • In confused, disorderly haste. 

adj
  • Carelessly hurried and confused. 

like crazy

prep
  • To a great or excessive degree; with great speed, output, enthusiasm, etc. 

How often have the words helter-skelter and like crazy occurred in a corpus of books? (source: Google Ngram Viewer )