builder vs rolly polly

builder

noun
  • A person who builds or constructs things. 

  • Master artisan, who receives his instructions from the architect, and employs workers. 

  • Software that allows the user to create a certain kind of automated output. 

  • A bodybuilder. 

rolly polly

noun
  • A woodlouse. 

  • A forward roll or a backwards roll. 

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