ganga

-A female who part-takes in gangbangs
-Someone disgusting enough to lower themselves to a gangbang
-A whorish/slutty looking girl

The girl doesn't actually need to be a ganga to be called one.
Disgusting girls can also be called ganga's as well as girl's who have the appearance of being easy, cheap and dirty.

Ganga means money or something valuable. But it’s like a phrase

In Hinduism, the river Ganges is considered sacred and is personified as the goddess Gaṅgā. Some of Her other names include Jaahnavi, Nikita, Jaahnukanya, Sapteshwari, Sureshwari, Bhagvati, Urvijaya, Chitraani, Tridhara, Bhaagirathi, Shubhra, Vaishnavi, Vishnupadi, Bhagvatpadi, Tripathaga, Payoshnika, Mahabhadra, Mandaakini, Meghna, Meghal, Gangika, Gange, Gangeshwari, and Alaknanda. She is worshiped by Hindus who believe that bathing in the river causes the remission of sins and facilitates Moksha (liberation from the cycle of life and death), and that the water of the Ganges is considered very pure. Pilgrims immerse the ashes of their kin in the Ganges, which is considered by them to bring the spirits closer to moksha. In Hinduism, moksha is the liberation from the cycle of life and death.

Ganga is another word for slut and whore.

Slang term for marijuana (pot, mary jane, reefer, GANGA)

literally the coolest hottest person ever so much cooler than you bow down bitches

A Group Of Hot Sluts.

Commonly Identified by a Tattoo on their lower back.