a cardboard tube left after the depletion of toilet paper or paper towels with a sheet of bounce used in laundry (used in the dryer)covering the open end. While smoking marijuana one holds the hit and brings the tube to the mouth at which point the hit is exhaled and causing the smoke to travel through the strong smelling sheet and diminishing the harsh smell of marijuana smoke.
yo when i need to get rid of my left over gram but my parents are home, i just blaze a spliff through a bounce tube and they don't know shit!
by bigg neil February 9, 2006