lean vs thin as rail

lean

adj
  • Having little fat. 

  • Having little extra or little to spare; scanty; meagre. 

  • Having a low proportion or concentration of a desired substance or ingredient. 

  • Slim; not fleshy. 

  • Efficient, economic, frugal, agile, slimmed-down; pertaining to the modern industrial principles of "lean manufacturing". 

verb
  • To incline, deviate, or bend, from a vertical position; to be in a position thus inclining or deviating. 

  • To hang outwards. 

  • To conceal. 

  • Followed by against, on, or upon: to rest or rely, for support, comfort, etc. 

  • To press against. 

  • To thin out (a fuel-air mixture): to reduce the fuel flow into the mixture so that there is more air or oxygen. 

  • To incline in opinion or desire; to conform in conduct; often with to, toward, etc. 

noun
  • An inclination away from the vertical. 

  • An organism that is lean in stature. 

  • Meat with no fat on it. 

  • A recreational drug based on codeine-laced promethazine cough syrup, especially popular in the hip hop community in the southeastern United States. 

thin as rail

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