They've never been friends. He's an "arrogant narcissist" and a bully. And no, she's not gay.

So says Tracy Grimshaw, host of the Nine Network's A Current Affair program, who has hit back after being publicly denigrated by celebrity chef Gordon Ramsay in Melbourne on Saturday.

Before an audience of several thousand people at the Melbourne Good Food and Wine Show, following an interview with Grimshaw the previous day, Ramsay described her as "a lesbian".


He then showed a picture of a woman, who appeared naked. The woman was posed on her hands and knees but had multiple breasts and the facial features of a pig.

"That's Tracy Grimshaw," he said. "I had an interview with her yesterday, holy crap. She needs to see Simon Cowell's Botox doctor."

Ramsay's publicist later said the comments were a joke and that Ramsay and Grimshaw had a good relationship.

Ramsay made further digs at the A Current Affair host in his appearances at the show on Sunday and yesterday.

Grimshaw was having none of it, returning fire with a withering editorial during her show last night.

She said Ramsay and his publicist asked before her interview that she not ask about his private life - Ramsay's image has taken a battering after an alleged extra-marital affair made headlines earlier this year.

"... Gordon Ramsay made me promise not to ask on Friday about his private life. He then got on stage on Saturday and made some very clear and uninformed insinuations about mine," Grimshaw told viewers.

"Obvious Gordon thinks that any woman who doesn't find him attractive must be gay.

"For the record, I don't. And I'm not."

Grimshaw told Fairfax Radio today that the personal attack upset her and her mother.

"It upset my mother and when you upset my mother you upset me," she said.

This contributed to her decision to respond.

"Mum was upset for me, she was upset that someone would attack me like that so I thought, dammit, I'll have a bit of a crack back at him," she said.

The comments were no joke, she said last night.

"Truly, I wonder how many people would laugh if they were effectively described as an old, ugly pig," she said.

Grimshaw said she had considered not responding to Ramsay's comments.

"But we all know that bullies thrive when no one takes them on, and I'm not going to sit meekly and let some arrogant narcissist bully me."

She said she had no idea what prompted Ramsay's spray.

"Gordon Ramsay has always had fair and generous treatment on this program but, despite what his publicist said in damage control, we do not have a great relationship. We do not have a relationship at all," she said.

"I've played along with him in interviews because it's entertaining, and that's my job, and I walk away afterwards and I don't think about him again."

Grimshaw told Fairfax Radio she did not expect an apology from Ramsay.

"I don't want one, I don't care - there's nothing more he can do to me now and he can't make it better," she said.

"I'm not interested in speaking to the bloke again - I can't imagine any circumstances where I would want to interview him again."