be on top of heap vs blossom

be on top of heap

blossom

verb
  • To have, or open into, blossoms; to bloom. 

  • To begin to thrive or flourish. 

noun
  • A blooming period or stage of development; something lovely that gives rich promise. 

  • A flower, especially one indicating that a fruit tree is fruiting; (collectively) a mass of such flowers. 

  • The state or season of producing such flowers. 

  • The colour of a horse that has white hairs intermixed with sorrel and bay hairs. 

How often have the words be on top of heap and blossom occurred in a corpus of books? (source: Google Ngram Viewer )