What does GonG mean in referance to bongs

Ok, really odd question..
Ive been looking at glass bongs on the net, and im seeing the word "GonG" alot, usually with a capital G at the end.

An example would be "its not just any bong, its a GonG bong"

What the hell does this mean?

Dosen't seem to be a brand of bong either...

if you took chemistry or anything in high school you'd know but it means glass on glass, instead of a shitty rubber grommet there's a nice glass on glass male and female part and they go together
this is glass on glass http://www.roorsupply.com/images/roor-glass.jpg

Ahhh, that makes sence! Cheers for clearing that up for me

your welcome