Boxing champion Floyd Mayweather Jr has backed the misogynist slurs of United States president Donald Trump, saying it’s how a “real man” talks.

In an interview with Hollywood Unlocked, the 40-year-old gave weight to Trump’s infamous “grab them by the p—y” comment made in 2005 – and leaked during the 2016 US presidential campaign.

“People don’t talk the truth,” Mayweather Jr said, using Trump’s own words to defend the comment, that it was simply “locker room talk”.

“Real men speak like ‘Man, she had a fat a–e. You see her a–e? I had to squeeze her a–e. I had to grab that fat a–e.’ Right? So he (Trump) talking locker room talk.

“Locker room talk. ‘I’m the man, you know what I’m saying? You know who I am. Yeah, I grabbed her by the p***y and’?”

Mayweather Jr, who recently beat Irishman Conor McGregor in a hugely popular fight in Las Vegas, has been slammed for supporting Trump’s inflammatory comments on social media, with many noting the boxer’s criminal history of domestic violence against women.

Given Mayweather's past this is the least surprising thing ever. https://t.co/9WSxsO9o1q

— Melissa Jacobs 💙 (@thefootballgirl) September 14, 2017

In 2002, Mayweather Jr was charged with two counts of domestic violence, receiving a six-month suspended sentence.

And two years later, the boxer was given a one-year suspended jail sentence and ordered to undergo counselling after being convicted of misdemeanour battery against two women.

“I feel people shy away from realness,” Mayweather Jr said in the Hollywood Unlocked interview.

“This man didn’t do nothing. Listen, if y’all didn’t want the man in the White House, y’all should have voted the other way.

“It ain’t like he went and robbed – he done his homework. He did what he had to do and he got there.”

Trump made the infamous remarks in an off-camera recording while talking to TV host Billy Bush during the taping of US entertainment show, Access Hollywood, in 2005.

During the recording with Bush, the then-Republican Party candidate bragged about trying to pursue an unnamed married woman, thought to be Arianne Zucker, who was waiting to escort Trump into a soap opera set.

“I’ve gotta use some Tic Tacs, just in case I start kissing her,” Trump said.

“You know I’m automatically attracted to beautiful – I just start kissing them.

“And when you’re a star they let you do it. You can do anything. Grab them by the p***y. You can do anything.”

In a statement released by his campaign, Trump called the remarks “locker room banter” and a “private conversation that took place many years ago”.

“Bill Clinton has said far worse to me on the golf course – (I’m) not even close. I apologise if anyone was offended,” he said at the time.

Earlier this week, Mayweather Jr revealed he has seven girlfriends in a Youtube interview with a puppet called Diego at his Las Vegas strip club.

– with ABC