hatstand vs helter-skelter

hatstand

adj
  • Crazy, insane. 

noun
  • A device used to store hats upon, consisting of a vertical pole with a sturdy base to prevent toppling, and an array of pegs to hold the hats. 

helter-skelter

adj
  • Carelessly hurried and confused. 

adv
  • In confused, disorderly haste. 

noun
  • A helical fairground slide. 

  • Confusion or turmoil. 

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