can't wait vs itch

can't wait

verb
  • To eagerly anticipate; to find it hard to wait for a forthcoming pleasurable event. 

  • To need to be attended to right away. 

itch

verb
  • To have a constant, teasing urge; to feel strongly motivated; to want or desire something. 

  • To scratch or rub so as to relieve an itch. 

  • To feel itchy; to feel a need to be scratched. 

  • To cause to feel an itch. 

noun
  • A constant teasing desire or want. 

  • A sensation felt on an area of the skin that causes a person or animal to want to scratch said area. 

How often have the words can't wait and itch occurred in a corpus of books? (source: Google Ngram Viewer )