Good one. Many years ago I was out fishing for Silver Carp with a buddy of mine and he cast out with one of those sinkers on his line. The sinker allowed for a pretty long cast and it flew out to the middle of the river coming down just as a carp was jumping out of the water. The sinker hit that carp right square on the head. You could hear the thump. My buddy said: "What the....?". My reply was: "That's not exactly the way you're supposed to use those sinkers." This, of course, was followed by a fit of laughter.we call them bell sinkers.