braai vs hibachi

braai

noun
  • A barbecue (grill), especially an open outdoor grill built specifically for the purpose of braaing. 

  • A social meeting, including the braaing of meat; a cookout. 

verb
  • To grill meat over an open flame (not on a gass grill). 

hibachi

noun
  • A cooking method and performance art in which the chef grills pieces of food on a hot metal griddle in front of the guests; teppanyaki. This terminology is virtually unknown in Japan. 

  • The griddle used in such cuisine; teppan. 

  • A portable brazier, powered by charcoal, used for cooking. 

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