Ganj Father Share definition Flag A slang/code name for a a drug dealer. a Shortened phrase of "Ganja Father", more literally meaning Marijuana Father. Dude, our stash is looking pretty dry. We better pay a little visit to the Ganj Father. Ganj Father by UKNOWMESON January 26, 2010 0 0 Get merch Get the Ganj Father mug. Buy Now — $32.95 See more merch