whisker
n.— «For example, to create “whiskers,” or the horizontal lines of discoloration that run across the thighs, Caitac made balloons that inflate and deflate, mimicking legs inside a pair of jeans, so employees can sand the denim by hand. For three-dimensional whiskers, or permanent folds in the denim, Caitac ordered a fast-hardening resin, which is ironed into the jeans and then baked in an oven.» —“Reborn in the U.S.A.” by Michael Barbaro in Los Angeles New York Times Sept. 26, 2007. (source: Double-Tongued Dictionary)