scared shitless vs shaky

scared shitless

adj
  • Very frightened, terrified. 

shaky

adj
  • Nervous, anxious. 

  • Easily shaken; tottering; unsound. 

  • Shaking or trembling. 

  • Wavering; undecided. 

  • Full of shakes or cracks; cracked. 

How often have the words scared shitless and shaky occurred in a corpus of books? (source: Google Ngram Viewer )