above-board vs dead-nuts

above-board

adv
  • Honestly; openly. 

adj
  • In open sight; without trick, concealment, or deception. 

dead-nuts

adv
  • Precisely, exactly, completely. 

adj
  • Precise, exact, completely accurate. 

How often have the words above-board and dead-nuts occurred in a corpus of books? (source: Google Ngram Viewer )