Wilder is renowned for the power of his punch. He has a 95% elimination rate throughout his career, Fury being one of only two men to lead the American to 12 laps.
Speaking to reporters ahead of next Saturday's showdown at the MGM Grand in Las Vegas, Fury said he uses oral sex for fitness training as he prepares to face Wilder's beating.
"I trust my chin, but I licked p **** a lot to strengthen my jaw," said the 31-year-old Briton in quotes from The Sun.
"So yes, I also strengthened the old jaw. "
Fury says he is trying everything he can think of to give himself the edge next weekend after his first fight with Wilder in December 2018 was a draw.
Fury recently said he masturbated seven times a day to continue pumping testosterone before Saturday's rematch.
"I do a lot of things that I didn't do before," he said. I eat five or six meals a day, I drink eight liters of water. If it gives me an advantage, I'm ready to try it.
“I masturbate seven times a day to continue pumping my testosterone. "
He also claimed to dip his hands in gasoline to harden the skin.
"For this fight, I'm going to dip my hands in gas for five minutes a day in the last three or four weeks of training camp to really toughen them up," said Fury.