realistic vs screw loose

realistic

adj
  • Relating to the representation of objects, actions or conditions as they actually are or were. 

  • Expressed or represented as being accurate, practicable, or not idealistic. 

screw loose

noun
  • A state of insanity or eccentricity. 

How often have the words realistic and screw loose occurred in a corpus of books? (source: Google Ngram Viewer )