"Yo G!! i need some advice what do u do if the north is under control but theres an uprising in the south" (Will asking geofrey for help with problems with Lisa)
When someone is immune to using the letter "g" in their away messages, facebook comments, etc. (ie showerin off, eatin dinner, bikin), this exclamation is used between to outside parties to express mockery towards their dorkiness. There is a correspondinghandshake, in which the outside parties slap their palms together, then the front of their hand, followed by a snap, at which time they exclaim, "G!"