g9 is the latest in sexual exploits. It is only for the sexually deviant who love to freak. Typically taking place on the dance floor, g9 is performed when the giver (it can be male/female/dildo...) gets it in the ass of the receiver (female/male/blow up doll...) while grinding them from behind. Doing this position while listening to dub-step intensifies the experience.
Oh shit son, imma g9 all up on Sawan tonight, shits gonna go down/up/in/out/all over, and ya'll can watch.