dingus vs doodah

dingus

noun
  • penis 

  • A gadget, device, or object whose name is either unknown, forgotten, or omitted for the purpose of humor. 

  • A fool or incompetent person. 

doodah

noun
  • poop 

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