12 vs walloper

12

noun
  • Collectively, police or law enforcement. 

  • See also: fuck 12 

symbol
  • Used by fans of American football, positioning themselves as the 12th member of an 11-player team. 

walloper

noun
  • A policeman, a male police officer. 

  • penis; (by extension) an idiot, a stupid person. 

  • One who wallops. 

  • Something big; a whopper. 

  • A cudgel, a shillelagh. 

How often have the words 12 and walloper occurred in a corpus of books? (source: Google Ngram Viewer )