What is Camelbak?
1.
A Back Pack you wear that holds a bunch of liquid. (Most of the time liquor) You then suck it out of the back pack with a straw or tube. I believe there may be a better word for this, but I have heard CamelBak used many times.
"Man bring your CamelBak along to the hockey game"
See
2.
A back pack that can be used to carry an excessive amount of liquid and get sucked out of a straw connected to the liquid pouch.
Suck on my Camelbak Bitch!