UFC champion Ronda Rousey has once again mocked five division champion Floyd Mayweather, opening up over her “how does it feel to be beaten by a woman” sledge and how she earns more money “per second” than him.

Speaking to popular talk show host Jimmy Fallon, Rousey was asked about her infamous pot shot at, Mayweather, after she won the 2015 ESPY award for "best fighter".

"I said something to the effect that now he knows what it feels like to have a woman beat him for once," Rousey said.

The UFC queen and Mayweather have been feuding for months, with Rousey claiming she could beat him in a no-rules mixed martial arts fight, which the boxer dismissed.

The feud started in July of 2014, when Mayweather claimed that he didn't not know who Rousey was, and now she promised to continually introduce herself when they cross paths.

Asked whether she had received any texts from Mayweather, Rousey said:

"He still maintains he has no clue who I am so every time I run into him I'm gonna reintroduce myself to him. And maybe one day he will actually remember me."

Rousey, who has dabbled in acting, also fired a verbal jab at Mayweather's earning capacity in the wake of the welterweight champion's boast that he made $300 million for his May bout with Manny Pacquiao.

In response, The Fast and Furious 7 star believes she earns more than Mayweather "per second" because she is more efficient at winning her fights.