raze vs slap together

raze

noun
  • A swinging fence in a watercourse to prevent cattle passing through. 

verb
  • To destroy; to strike out of existence; to obliterate. 

  • To scrape as if with a razor. 

  • To demolish; to level to the ground. 

slap together

verb
  • To put together hastily; to assemble carelessly and improvisationally. 

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