hit like a ton of bricks vs nonplus

hit like a ton of bricks

verb

  • To have a sudden and significant impact. 

nonplus

verb

  • To bewilder or perplex (someone); to confound, to flummox. 

noun

  • A state of bewilderment or perplexity. 

How often have the words hit like a ton of bricks and nonplus occurred in a corpus of books? (source: Google Ngram Viewer )