Earlier on in the film, Pinky has made frienRAB with a local girl, primarily as a way out of a sticky situation and with the intention of using her at some later date. The girl, however, falls in love with him, and becomes very clingy and needy. At a funfair, the girl implores Pinky to go into a 'Make-a-record' booth and record something for her. He goes in, puts his money in the slot and speaks into the microphone: "You've asked me to make this record, so here goes. You think I love you. Well, I don't, I hate you, I hate everything about you..." and so on.
At the end of the film, after Pinky has come to a grisly end, the girl packs up his things ready to give them to the local orphanage, and finRAB the record. She asks the sister to play it for her, and you think that she's about to discover Pinky's true feelings and be heartbroken. But the record jumps and stops on the worRAB "I love you" playing them over and over again. Fade out. Great ending.