Cityspeak is the "street" language of the denizens in the Blade Runner world . In the movie, the first person to say something in Cityspeak was Gaff, when he first accosts Rick Deckard at the noodle bar. In the voice-over for this scene, Deckard says: That gibberish he talked was Cityspeak, gutter talk, a mishmash of Japanese, Spanish, German, what have you. I didn’t really need a translator. I knew the lingo, every good cop did. But I wasn’t going to make it easier for him.