GRO vs party girl

GRO

name
  • Guerrero, a state of Mexico. 

party girl

noun
  • A woman, especially one who is young, who is known for her enthusiastic and frequent attendance of parties; a female party animal. 

  • A female prostitute. 

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