vampire
n.— «“If it doesn’t show up in the drug controls, then it’s not doping.” The UCI announced that it was targeting 10 or so “men in black”—riders who trained in far-flung, secret locations in black jerseys that disguised their identities, ostensibly to foil drug-testers. What’s the big deal, replied Astana in a statement. Yes, our riders sometimes train in plain clothes—not to avoid UCI “vampires,” as the drug-testers are called—but to foil “cyclo-tourists” who are always trying to get autographs.» —“Inside the Tour de France: Collateral damage” by Austin Murphy SI.com July 24, 2007. (source: Double-Tongued Dictionary)