couch
 n.— «Just about every Harley model was on display, from customised low-riders to enormous, well-upholstered cruisers. These behemoths, which tend to be ridden by equally well-upholstered middle-aged men, are jokingly referred to as “couches” for their comfortable ride.» —“High on the HOG” by Julia Beffon Mail & Guardian (South Africa) Mar. 24, 2006. (source: Double-Tongued Dictionary)

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