It's an ancient form of wresling/martial arts and was very popular in the early Olympics.
Furious is an adjective meaning extremely angry or livid
In A Way Yes,It Takes Place After 2 Fast 2 Furious, But Before Tokyo Drift
Fast And Furious 4 is set somewhere between 2 Fast 2 Furious and Tokyo Drift. At the end of Tokyo Drift, Vin Diesel makes a cameo saying he knew Han. He knew Han from exactly the stunts they pull off...
It is like wrestling or boxing, has no rules and is an empty-handed combat!
Diablo III BlizzCon 2009 Monk Gameplay Trailer
A Look at Fast Five
Fast
Jordana Brewster Is Fast