offy vs party store

offy

noun
  • An off break. 

  • An off-licence. 

  • An off spinner. 

party store

noun
  • A shop that sells or hires fancy dress and other goods for parties. 

  • A liquor store, especially one that also serves a convenience store. 

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