A humanized name given to the marijuana smoking apparatus known as a GB Gravity Bong ).

Joe: "Dude last night I go so high with my girl Geeba!"Tom: "No way! Who is Geeba man? She sounds like a chill gal ."Joe: "Geeba isn't a real girl Tom, it's the name I gave my GB Gravity Bong )!"Tom: "Dude! That's genius man!"