The whole conversation ended with shots fired at "The Talk."
During another "spirited" debate -- this time about Donald Trump supporters at his rally on Tuesday night -- on Wednesday's episode, McCain dropped the b-word in reference to her cohost.
"Sometimes it's not that they love Trump so much, it's that they hate the same things Trump hates," McCain said. Joy interjected, saying, "Who, black people you mean and immigrants? Who do they hate??
"I come here every day open minded, trying to explain it," McCain shot back, getting defensive. "I know you're angry, I get that you're angry Trump's president, but I don't think yelling at me is going to fix the problem. 2020 is not in the bag for you, it's not."
As the two kept going back and forth, Whoopi Goldberg interrupted. "Okay guys. Okay," she said with a smile, "it's a great discussion and we can go back to it, I need everybody to take a beat."
"Being the sacrificial Republican every day, I'm just trying to ...." McCain exclaimed, as Behar mocked sympathy for her.
"Don't feel bad for me, bitch," Meghan shot back, as the audience reacted with shock, "I get paid to do this."
"Let's not call each other bitches," said Sunny Hostin, as McCain said she and Joy refer to each other in that way "all the time." Behar laughed as Whoopi threw to commercial, but the conversation continued after the break.
"You know, sometimes we get spirited on this show," said Whoopi when they returned. "We used to say 'bitch' all the time and one of the people that was here, she used to get upset, so we stopped saying it and now 'bitches' creeped in and they're good with 'bitch.'"
McCain, explaining she wrote a book called "America, You Sexy Bitch," said she personally loves the term. "Joy and I call each other 'bitch' all the time and text each other 'bitch.' I know you're comfortable with it, she knows I'm comfortable with it," Meghan added, saying she would never have said it if she didn't have that knowledge.
"I also enjoy fighting with you and she enjoys fighting with me," McCain continued. "I just want everyone to stop being so precious about our relationship because it's almost 2020 and women can debate on TV in a spirited way without it being personal. And I know this is a big shock, but we get along backstage."
Behar echoed her comments, saying that "even if it gets vicious -- it does get vicious -- we're both pugilistic and so it's fine. I'm very straight in what I believe and so does she, we're gonna fight. And I don't care if you call me a bitch."
Hostin said she spoke up because she knows "a lot of times viewers get offended." Meghan's response: "Well, this probably isn't the show for you if you're offended easily."
Behar brought the whole thing to a close by firing shots at another morning show, joking anyone offended will "have to watch 'The Talk'" instead.