crackers vs manic

crackers

adj
  • Crazy, insane. 

noun
  • A kind of noisy leather pants or trousers. 

manic

adj
  • Of or pertaining to someone who exhibits mania or craziness; wicked. 

  • Suffering from mania, the state of an abnormally elevated or irritable mood, arousal, and/or energy levels. 

noun
  • A person exhibiting mania. 

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