noddy vs pudding-head

noddy

noun
  • Any of several stout-bodied, gregarious terns of the genera Anous and Procelsterna, found in tropical seas. 

  • An inverted pendulum consisting of a short vertical flat spring which supports a rod having a bob at the top; used for detecting and measuring slight horizontal vibrations of a body to which it is attached. 

  • A stupid or silly person. 

  • A cutaway scene of a television interviewer nodding, used to cover an editing gap in an interview. 

pudding-head

How often have the words noddy and pudding-head occurred in a corpus of books? (source: Google Ngram Viewer )