shiprider
n.— «It’s just one of many possible dilemmas facing an increasing number of private security companies who offer armed escorts—known in the industry as “shipriders”—from Somali pirates. The few companies that have begun offering armed escorts say their services have become increasingly popular since the April hijacking of the American-flagged Maersk Alabama.» —“Companies hire “shipriders” against Somali pirates” by Katherine Houreld KansasCIty.com June 5, 2009. (source: Double-Tongued Dictionary)