@kkfengdao,
It is an ANGLO-Indian term (common in Calcutta, India) used to describe a low class woman with cheap taste, trying to pass as upper class. She may speak in a high pitched voice, be over made up, and wear cheap, flashy clothes and jewelry, all the time trying to emulate someone of status. In America, a similar term would be 'trailer trash'. Or, Ghetto-fabulous for blacks.