mana vs street cred

mana

noun
  • Magical power. 

  • Power, prestige; specifically, a form of supernatural energy in Polynesian religion that inheres in things or people. 

street cred

noun
  • Credibility among young, hip urban dwellers; particularly important in the hip-hop and rap scenes. 

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