thin as a wafer vs watery

thin as a wafer

adj
  • Extremely thin. 

watery

adj
  • Thin and pale therefore suggestive of water. 

  • Tearful. 

  • Diluted or having too much water. 

  • Weak and insipid. 

  • Resembling or characteristic of water. 

  • Wet, soggy or soaked with water. 

  • Discharging water or similar substance as a result of disease etc. 

How often have the words thin as a wafer and watery occurred in a corpus of books? (source: Google Ngram Viewer )