helter-skelter vs like a bat out of hell

helter-skelter

adv

  • In confused, disorderly haste. 

noun

  • A helical fairground slide. 

  • Confusion or turmoil. 

adj

  • Carelessly hurried and confused. 

like a bat out of hell

prep

  • With crazy or excessive intensity or speed. 

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