A women who is apart of the Jatt race; it is not a caste, but a culture. Jatts are an ethnic tribe, but actually became classified as a caste arbitrarily. Jattis are just women who are proud of their culture and where their ancestors have come from. In contrast to the comment below, they are not women who disrespect their culture or religion.
Jattis are simply proud of their heritage and if somebody stereotypes them in a negative way, it is just unnecessary anger and jealousy over the fact that Jatts are known as strong, proud, and hard-working people.
the Jatt Attitude; Jatt is a term used to identify the People of Punjab (India), especially sikhs. They Punjabis are known for their high-spirited living and attitude, thus the term Jattitude indicates a person having Jatt attitude.
Jattitude - Liveliness of Punjabis all over the world