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A handmade smoke concealment apparatus, typically made out of a tube with both ends open. The insides are stuffed with dryer sheets, so that when the -Cannabis- smoker blows through, the smell of the smoke changes to that of the dryer sheets and not of Marijuana.

Typically used in dorm rooms, parent's houses, and in other places where the act of cannabis smoking must be concealed.
Dube Tubes do an incredibly good job of concealing the smell of Marijuana.
by JihadJoe75 February 11, 2008
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