bust up vs calve

bust up

verb
  • To break up (end a relationship) 

  • To physically damage or ruin 

calve

verb
  • to break off 

  • to shed (a large piece, e.g. an iceberg); to set loose (a mass of ice), e.g. a block of ice (coming off an iceberg) 

  • to give birth to (a calf) 

  • to assist in a cow's giving birth to a calf 

  • to shed a large piece, e.g. an iceberg or a smaller block of ice (coming off an iceberg) 

  • to give birth to a calf 

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