Sentence:  You're pissed if someone sets too close to you and especially if he sets his net right along yours, "<WSD>corking</WSD>" you and intercepting the fish that seem headed to your own net. I was close to this guy's outside net, but definitely not <WSD>corking</WSD> him. 
Meaning of the word marked with <WSD> tags:  To position one's drift net just outside of another person's net, thereby intercepting and catching all the fish that would have gone into that person's net.