on the nose vs smack dab

on the nose

prep
  • Exact; precise; appropriate. 

  • Unimaginative; over-literal; lacking nuance. 

  • Smelly, malodorous. 

  • To finish first. 

  • Used other than figuratively or idiomatically: see on, nose. 

smack dab

How often have the words on the nose and smack dab occurred in a corpus of books? (source: Google Ngram Viewer )