frosting vs icicle

frosting

noun
  • A layer of frost. 

  • Icing, a sweet, often creamy and thick, covering for cakes and other baked goods. 

  • The theft of a car while it is left unattended, especially when its engine is left running in the winter to defrost the car. 

icicle

noun
  • A drooping, tapering shape of ice. 

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