WAG vs bombshell

WAG

noun
  • A wife or girlfriend of a sports star or other celebrity, originally and especially of an association football player. 

  • A wild-assed guess; a rough estimate. 

bombshell

noun
  • A bomb or artillery shell designed to explode on impact. 

  • Something that is very surprising, shocking, amazing or sensational. 

  • Someone who is very attractive; a sex symbol. 

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