Sentence:  Sometimes, he would pinch out of the bag, and the guy at the weed house would give him something, and after watching him for a while, he would let me take care of the weed business. The <WSD>weed man</WSD> knew who I was so did the guys who were buying. 
Meaning of the word marked with <WSD> tags:  A drug dealer or dispenser who specializes in cannabis.