man to man vs straight up

man to man

straight up

adv
  • To the utmost degree; really. 

  • Chilled (stirred or shaken over ice) and served in a cocktail glass, with no ice. 

  • Unambiguously; bluntly; plainly and directly. 

  • Truthfully; honestly. 

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