Gatso noun 1verb 1forms 4 noun1 •(UK, informal) A speed camera. verb1 •(UK, informal) To fine (a driver) for exceeding the speed limit with the help of a speed camera.Hmm, sounds like a plan we should recommend to the next idiots who come along moaning about how unfair it is they've been Gatso'ed, to go speeding back past the camera in the opposite direction. — 2001 formsGatso'd · Gatsoed · Gatsoing · Gatsos