Former President Donald Trump mocked fellow Republican presidential hopeful and former New Jersey Gov. Chris Christie over his weight during a campaign stump speech in New Hampshire on Tuesday.

The moment took a turn, though, when Trump jokingly admonished a member of the audience who, according to the former president, called Christie a "fat pig."

"Christie – he's eating right now. He can't be bothered," Trump said during the speech as the crowd laughed.

"Sir, please do not call him a fat pig. That's very disrespectful. Don't call him – see, I'm trying to be nice," Trump then said, addressing the audience member who Trump said called Christie the name.

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Chris Christie and Donald Trump

Former New Jersey Gov. Chris Christie and former President Donald Trump (Getty Images)

"Don't call him a fat pig. You can't do it. You can't do that. So now, because you're not allowed to do that, and, therefore, we're not going to do it, OK? We want to be very civil, right?" Trump said as he chuckled.

Trump's comments were just the latest instance of his poking fun at Christie's weight, something he's done on multiple occasions in the past.

In June, Trump appeared to target Christie's size in multiple social media posts after the former governor's launch of his second presidential campaign.

"How many times did Chris Christie use the word SMALL? Does he have a psychological problem with SIZE?" Trump wrote on Truth Social, referencing Christie's launch speech.

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Donald Trump Truth Social

Former President Donald Trump lashed out at former New Jersey Gov. Chris Christie in a post on Truth Social after the latter's presidential campaign launch on June 6, 2023. (Donald Trump/Truth Social)

"Actually, his speech was SMALL, and not very good. It rambled all over the place, and nobody had a clue of what he was talking about. Hard to watch, boring, but that’s what you get from a failed Governor (New Jersey) who left office with a 7% approval rating and then got run out of New Hampshire. This time, it won’t be any different!" he added.

In September, Trump posted a photo of a man that looked like Christie standing at a buffet: "Chris Christie at a Roy Rogers at 11 PM in the evening trying to console himself," Trump wrote.

Christie hit back at Trump in June over the latter's weight-related jabs in an interview with Fox News.

"Oh, like he’s some Adonis?" he told host Howard Kurtz on "MediaBuzz," referring to mythological Greek god known for beauty.

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Donald Trump Truth Social

Former President Donald Trump mocked former New Jersey Gov. Chris Christie's weight in this Truth Social post from September 2022. (Donald Trump/Truth Social)

"You know, look, Howie, there are tens of millions of Americans out in your audience watching right now who, like me, have struggled with their weight. I continue to struggle. I continue to try to do better. And so … what’s that got to do with my competence for office?" he said.

"I ran the governorship of New Jersey for eight years, I think in a very energetic, successful way, responded to Hurricane Sandy, working 20 hours a day for weeks. I don’t know what his point is. You know what it is? It’s like a child. It’s a bully on the schoolyard who teases you and makes fun of you," he added.

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Fox News Digital has reached out to Christie's campaign for comment.