dub
 n.— «Dub, a niche car magazine,…took its name from street slang for 20—as in a double-dime bag of marijuana—because when it was founded most oversize wheels were 20 inches in diameter… G.M. became the first big carmaker to cross the 20-inch wheel threshold by unveiling its own line of dub-size rims.» —“The Dub Generation: Gearheads Go Hip-Hop” by Denny Lee New York Times Apr. 23, 2004. (source: Double-Tongued Dictionary)