"Short me one"

Oh, so I forgot to tell you this but the first week of college I went to some tobacco store and a black hobo who was hanging around outside and was like, "Short me one," and I didn't know what the hell that even meant so I asked him and he said it means to give him the rest of my unfinished cigarette haha so I just gave him a whole one and threw mine on the ground and then just as I was about to crush it he was like, "NO no no no no no non o non I need that," and he smoked that, too.