porno /ˈpɔːnəʊ/noun 3adjective 1forms 1 noun3 •(informal) Pornography.In any case, porno is littered—porno is heaped—with the deaths of feelings. — 2004 •(informal) A pornographic film.They watched a few pornos. •(informal) A pornographic magazine.He flipped through the porno. adjective1 •(informal) Pornographic.That's a porno film. formspornos