Former Vice President Joe BidenJoe BidenThe Hill's Morning Report — After contentious week, Trump heads for Japan Castro swears off donations from oil, gas, coal executives Meghan McCain on Pelosi-Trump feud: 'Put this crap aside' and 'work together for America' MORE expressed some remorse on Friday for suggesting earlier this week that he would have fought President TrumpDonald John TrumpNASA exec leading moon mission quits weeks after appointment The Hill's Morning Report — After contentious week, Trump heads for Japan Frustration boils over with Senate's 'legislative graveyard' MORE if the pair were in high school.

"I shouldn't have said what I said ... because I don't want to get down in the mosh pit with this guy," Biden said during an interview for the "Pod Save America" podcast.

"I did say, I used again, 'in high school,' " Biden emphasized several times. "I never, ever at any time said I would like to personally, physically, et cetera."

Biden declared at an anti-sexual assault rally in Miami earlier this week that in high school he would have taken Trump "behind the gym and beat the hell out of him."

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Trump fired back in a tweet Thursday, calling his potential 2020 presidential rival weak "both mentally and physically" while saying that Biden "would go down fast and hard" if such a confrontation occurred.

Biden noted Friday that he first suggested a high school-era altercation with Trump during the 2016 campaign when blasting the then-businessman over his lewd comments on tape boasting about grabbing women without their consent.

"Now the idea that I would actually physically get in a contest with the president of the United States or anybody else now is not what I said and is not what this was about," Biden said.

He said he didn't want Trump's "vulgar" comments on the 2005 "Access Hollywood" tape revealed weeks before the 2016 election to leave some men thinking it's OK to behave similarly.

"I think it's important to continue to make the point: women are entitled to be treated with respect, damn it. And it's about time we men stand up."

Biden made the comments in the interview with the former Obama staffers who host the podcast after they suggested several names for Biden and Trump's "fight," including the "Scranton Squabble," "1600 Punchsylvania Avenue" and "Spar-A-Lago."

"I think they're all good, guys," Biden said.