stun gun noun 1stun-gun verb 1forms 4 noun1 •A weapon intended to immobilize, usually through delivery of an electric shock.Lodner tossed the stun gun on a flange between the stills and the fluxing panels. — 1946 stun-gun verb1 •To shoot with a stun gun.So they stun-gunned him until he pissed his pants, unconscious. — 2005 formsstun-gunned · stun-gunning · stun-guns · stun guns