moonrakerPronunciation: /ˈmuːnreɪkə/Definition of moonraker noun 1 dialect a native of the county of Wiltshire. [with reference to the Wiltshire story of men caught raking a pond for kegs of smuggled brandy, who feigned madness to fool the revenue men, by saying they were raking out the moon] 2a small square sail set above a skysail on a sailing ship.