Means group gummer, when you get your dick sucked by more then one gurl, or you and your friends get your dick sucked by the same gurl, well just more then 2 people.
mmm lets go to the bedroom baby, i think tommys in there, you down with a GG?
When one puts rice in a balloon, blows it up, and inserts it into another's rectal cavity. The person inserts his or her penis or finger into the rectal cavity, and shakes vigorously, rattling the rice within similarly to the way a rattlesnake rattles its tail. Once finished, kick the partner in the stomach, successfully ejecting the now pressure cooked rice.
Yo, my stove broke down, so Jane and I had to Chinese Rattlesnake it last night.