A derogatory term used in India when referring to a Caucasian person in Hindi. Originally thought to have developed as a contemptible term for British officers and gentry by disgruntled Indians. Today used commonly to refer to any Westerner in casual conversations, akin to 'gaijin' in Japanese.
Second Person: Aah, some firangs got into a fight.
First Person: Really!?
Second Person: Yeah, they tried to feel up someone’s girl!
First Person: *snicker* I guess they're used to having sluts over there!
Second Person: *laughs* Firangs!