Wladimir Klitschko hit out at Tyson Fury over his remarks about homosexuals and women at a lively press conference that also saw the British fighter strip off his shirt and taunt his opponent for losing to a "fat man".
Fury, who beat Ukrainian veteran Klitschko on points last November in Germany to become world heavyweight champion, has provoked outrage by equating homosexuality and abortion with paedophilia and saying a woman's "best place is in the kitchen and on her back".
The two men meet again in a July 9 rematch at Manchester Arena, with the WBO and WBA belts Fury claimed from Klitschko back on the line.
And at Wednesday's press conference at the venue, Klitschko said of his revenge mission that he looked forward to there being "a champion that represents the sport in a good way and can be looked up to".
The 40-year-old then said: "I'm not okay with what comes out of Fury's mouth, his statements.
"For example - that all homosexual men and women and paedophiles belong in the same place, in jail basically. That all women belong in the kitchen and on their back.
"So that is basically where he sees Elton John and the Queen.
"To all people who say the same and think the same way out there, and to you Fury - I want to say f*** off."
Fury, 27, responded by drawing attention to the fact that Klitschko had sworn - and then throwing foul-mouthed insults back at him, including branding him a "hall of dogs**t fighter".
The Manchester native, who memorably turned up to a press conference in the build-up to the original fight dressed as Batman, was on colourful form in general on Wednesday.
He was accompanied by a posse of cheerleaders as he arrived, danced behind the top table before sitting down, then later stood up, removed his t-shirt to show his bare top half and grabbed at his quite considerable gut as he mocked Klitschko.
"I don't live a strict lifestyle - I don't even live an athlete's lifestyle. It is an absolute disgrace to call me an athlete," Fury said.
He then stripped off his shirt and shouted to Klitschko: "Shame on you - you let a fat man beat you!
"Fat as a pig, 30 stone - I could beat him here and now."
Fury also insisted he hates boxing.
"Boxing doesn't mean a lot to me. If it did, I wouldn't have gone into camp four stone over weight and eaten every pie in Lancashire and drunk every pint of beer in the UK," he said.
"I hate every second of it, and I wish I wasn't a boxer, but I'm in this position.
"I hate the training, the boxing, speaking to you all you idiots, the whole lot. I'd rather be at home with the kids watching television.
"I hate boxing, but I'm just too f****** good at it and making too much money to stop."
The unbeaten Fury (25-0, 18 KOs) told Klitschko he "got whupped" in their original fight, and added: "You will need to be about 1,000 times better. You landed about four shots in 12 rounds.
"You might be going down as a Hall of Fame fighter, but you are hall of dogs**t fighter in my eyes.
"If the super champion can't land on a big, fat, lazy gypsy with a loud mouth, what kind of super champion is he? He must be a s**t one.
"I'm going to knock him out inside a round, just to show how s**t he really is."
Klitschko (64-4, 53 KOs), having admitted he "made a mistake" in November when he suffered his first defeat since 2004, gave his own prediction as he said: "I will knock Tyson Fury out, period."