The "garage bong" is the bong
that is used in locations, or under circumstances, that are not appropriate for expensive glass pieces. i.e. the garage, camping, or parties. It is usually a bong
made from acrylic or another durable, albeit, inexpensive material. Ideally, the "garage bong" doesn't sacrifice the quality of the hit and can become a much loved mascot.
"Hey man? What's with the 'garage bong?' I thought this celebration was worthy of the monster 7mm." Reply: "Yeah, I considered it, but after a lot of thought I realized: you don't bring out the good china at a children's party. Dig it?"