cluck vs halfwit

cluck

verb
  • To cause (the tongue) to make a clicking sound. 

  • To call together, or call to follow, as a hen does her chickens. 

  • To make such a sound. 

  • to suffer withdrawal from heroin. 

noun
  • The sound made by a hen, especially when brooding, or calling her chicks. 

  • A kind of tongue click used to urge on a horse. 

  • Any sound similar to this. 

halfwit

noun
  • Someone lacking in intelligence. 

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