aluminum boat
n.— «The other bill amends the definition of drug paraphernalia to include all controlled substances, and adds “aluminum boats” to the list of paraphernalia. “Aluminum boat” is a term used to describe a folded, boat shaped piece of aluminum foil commonly used for smoking methamphetamines.» —“McDaniel weighs in” by Max Brantley Arkansas Blog (Little Rock) Jan. 23, 2007. (source: Double-Tongued Dictionary)