big cat vs jungle cat

big cat

noun
  • Used other than figuratively or idiomatically: see big, cat. 

  • Any large feline animal, especially one of the Panthera genus, including tigers, lions, jaguars and leopards. 

jungle cat

noun
  • Felis chaus, a medium-sized cat native to Asia. 

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