dumb surf
n.— «Despite e-tailers’ best efforts, lots of “eyeballs” out there still aren’t necessarily translating into sales.…The rest? Some frustrated sites have coined a term for these visitors: “dumb surf.” And if those folks have clicked through a paid search ad without buying anything, bringing them to the site actually costs the Web site money.…Other sites are taking a less visible role in turning dumb surf into smart shoppers.» —“E-Tailing: It’s All About Service” BusinessWeek Online July 6, 2005. (source: Double-Tongued Dictionary)