basa vs walloper

basa

noun
  • The catfish Pangasius bocourti. 

walloper

noun
  • A cudgel, a shillelagh. 

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

  • One who wallops. 

  • A policeman, a male police officer. 

  • Something big; a whopper. 

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