hang-up vs whim

hang-up

noun
  • An emotional difficulty or a psychological inhibition; a complex. 

  • An unforeseen obstacle to progress; a hitch or delay. 

whim

noun
  • A fanciful impulse, or sudden change of idea. 

  • A bird, the Eurasian wigeon. 

  • A large capstan or vertical drum turned by horse power or steam power, for raising ore or water, etc., from mines, or for other purposes 

verb
  • To be seized with a whim; to be capricious. 

How often have the words hang-up and whim occurred in a corpus of books? (source: Google Ngram Viewer )