Molan insisted to the Daily Mail that rather than mocking Pacific Islander names she was referring to an in-joke between the commentary team.
The publication reports that both Molan and Nine Entertainment, owner of 2GB, insist she was alluding to a story Brohman told nearly two months ago in early April.
Brohman's story centred on a conversation between father and son commentators, Ray and Chris Warren, who disagreed over the pronunciation of Manly forward Haumole Olakau'atu.
"His name had about 30 letters in it and I had trouble pronouncing it so I asked Chris 'how do you pronounce this bloke's name?'" Brohman said.
"He said 'well dad and I have been discussing this today... and dad thought his name was Chuka-lala-lulu.
"And 'I said, 'well, dad, I think it's Chuka-lala-lulu-lulu,' and he says, 'Chris, that's incorrect - it's Chukaka-lulalulalo'."
"Erin was jokingly mocking the difficulty Chris and his father had, going back and forth figuring out how to pronounce a complex name," the Daily Mail quoted Nine.
Molan however has come under fire over the comments with several past and present players labelling them insensitive and racist.
Manly Sea Eagles prop Martin Taupau said the remarks from Molan would have left his grandfather "tossing in his grave with anger".
ABC Radio presenter Tali Aualiitia took aim at Molan in a lengthy Twitter spiel for not understanding the effects of her failed joke.
"Erin Molan works in rugby league and, there are a bloody lot of Pacific players. It's literally her job to say these names and, to do the work to same them right," Aualiitia wrote.
"What she fails to understand, is that a Pacific name is not just a surname. It's your ancestors, your village, your people, your country.
"We wear our names with pride and they are not there to be made a mockery of – even as a joke with your co-worker."
NITV journalist Madeline Hayman-Reber was scathing in her take on Molan and couldn't believe she didn't understand the bigger issue.
"A disgusting display of racism made even more racist by her failure to recognise, understand, or learn. This is white Australia," she wrote.
Sharks forward Braden Hamlin-Uele hit out at the claims of an 'inside joke', calling on her to 'show some respect'.
"An inside joke? Show some respect!," Hamlin-Uele said in an Instagram story.
"If that's a joke between colleagues than F that workplace. Get out of the job @ErinMolan.
"Disgusting to even think that would be ok, to put on an accent and say that " he would later add. Wake up to yourself."