It is well known that Vince McMahon likes WWE Superstars to stick to the script during promos on live television. In a recent video, Ryback revealed what happened backstage after he said his trademark "feed me more" catchphrase without permission.

Ryback began saying the three-word taunt in 2012 during his rise to the main-event scene as one of WWE's top babyfaces. Over the next four years, he was told to only shout "feed me more" when he performed as a fan favorite.

On Ryback TV, the former Intercontinental Champion recalled how he encouraged fans to chant "feed me more" during his 2016 rivalry with Kalisto. It was unclear at the time whether he was supposed to be a babyface or heel in the storyline. Upon returning backstage, the 41-year-old was confronted by McMahon:

"When I got back through Gorilla Position [backstage], Vince McMahon, who had never spoken to me in an ill way, at least to my face, gets up out of his little chair in the Gorilla Position and was furious," Ryback said. "He comes marching over to me, which he says to me, 'Are you f***ing stupid?' I literally get right back in his face, and I go, 'No, are you f***ing stupid?' Vince McMahon went back and sat down and put on his headset and didn't say a goddam word to me." [2:08 – 2:33]

https://www.youtube.com/watch?v=111qvHOWV8Q

Kalisto defeated Ryback on the WrestleMania 32 and Payback 2016 kickoff shows to retain the United States Championship. The latter match turned out to be Ryback's last as a WWE Superstar.

https://www.sportskeeda.com/wwe/news-vince-mcmahon-allegedly-left-seat-confront-former-wwe-ic-champion-promo-incident