cybernat UK /ˈsaɪbənæt/US /ˈsaɪbɚnæt/ noun1 •(UK, informal) A Scottish nationalist who takes part in Internet activism.The much-vaunted phenomenon of the "cybernat", spraying online vitriol from a dingy bedroom, does indubitably exist, but so does its exact equivalent on the opposite side. — 2016 formscybernats