forget it vs puny

forget it

verb
  • Don't let it bother you; put it out of your mind. 

  • I don't want to continue with this conversation (usually used in frustration or anger). 

  • It doesn't matter. 

  • A conventional reply to an expression of gratitude. 

  • Absolutely not; I forbid it or it is impossible. 

puny

adj
  • Of inferior significance, size, or strength; ineffective, small, weak. 

  • (Frequently) ill; poorly, sickly. 

How often have the words forget it and puny occurred in a corpus of books? (source: Google Ngram Viewer )