choad vs plonker

choad

noun
  • A penis, especially one that is short and thick. 

  • The perineum. 

  • A loser or undesirable person; an insulting name. 

plonker

noun
  • A penis. 

  • A fool. 

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