broski vs little brother

broski

noun
  • brother; a male sibling 

  • Used to address a male 

  • Used to adress a friend when they just told you something shocking thay anothr person did (typically bad) 

  • brother; a male comrade or friend; one who shares one’s ideals. 

  • A person from Poland. 

little brother

noun
  • younger brother. 

  • Coordinate terms: little sister, big brother, big sister 

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