Ganja is another name for marijuana. The word is ofter times associated with the west indies, but the truth is that it originated in India.
ORIGIN: The word Ganja actually comes from the word Ganges, referring to the Ganges River, which is a river in India where Cannabis Indica grew naturally. Cannabis indica was brought to the west indies, and is therefore referred to as Ganga.
For those who didn't know.
"While swiming in the ganges river, I came across some Ganja, so i smoked it."
Cannabis sativa or indica with a very high percentage of THC. This marijuana is actually grown in California, and many times is from a medicinal marijuana dispensary in California. It is quite expensive in other places besides California considering the shipping and handeling process. In places far from California, the price will range from 25-30 a gram, but in California, it is usually a bit less than that.
"Yo, when is that Cali Bud coming in?"
"Dude, it was shipped today in overnight shipping, so it should get here tomorrow."