A gaff is a long keen piece of steel, as sharp as a needle, that is fitted over the spurs.

Well, I looked on at the fun.
Tom Tuck's rooster was named Southern Confederacy; but this was abbreviated to Confed., and as a pet name, they called him Fed.

Well, Fed was a trained rooster, and would "clean up" a big-foot rooster as soon as he was put in the pit.

But Tom always gave Fed every advantage.
One day a green-looking country hunk came in with a rooster that he wanted to pit against Fed.

He looked like a common rail-splitter.
The money was soon made up, and the stakes placed in proper hands.
The gaffs were fitted, the roosters were placed in the pit and held until both were sufficiently mad to fight, when they were turned loose, and each struck at the same time.