crape vs monkey wrench

crape

noun
  • Mourning garments, especially an armband or hatband. 

verb
  • To form into ringlets; to curl or crimp. 

  • To clothe in crape. 

monkey wrench

noun
  • A wrench (spanner) with an adjustable jaw. 

  • An unexpected or troublesome problem, obstacle or dilemma. 

How often have the words crape and monkey wrench occurred in a corpus of books? (source: Google Ngram Viewer )