Rush Limbaugh dedicated some time on his Thursday show to "set the record straight" about advertisers fleeing his show and rail against Washington Post columnist Alexandra Petri for what he called her "patently false" article.

Petri, who writes for the Opinion page, authored a piece titled "Rush Limbaugh’s show targets jerks, judging from the latest ads" on Wednesday. She reported that Limbaugh's radio program now includes ads from "AshleyMadison.com, the site where you go to cheat on your wife, and another Web site that is explicitly for sugar-daddy matchmaking."

Limbaugh vehemently denied the report. "There's only one problem. We are not running spots or commercials from AshleyMadison.com. In fact, when we find that they are running in our program in local markets, we call the local affiliate and tell them 'don't run these ads in our show.' We don't sponsor companies that help people cheat on their spouses! And right here it is in The Washington Post saying we are," Limbaugh said.

The radio host then launched an attack on Petri and said, "Ms. Petri, I don't know who feeds you your information—I have a pretty good guess— but you might want to double check here because you've written something that's patently false. It's an out and out lie complete with your b-i-itchy opinion in it and it's untrue."

Limbaugh added that Petri's article could not be "further from the truth," but also said that his company was in talks with AshleyMadison.com months ago but ultimately rejected their offer.

As he did earlier this week, Limbaugh let his viewers know that his show is doing absolutely fine after more than 40 advertisers pulled their spots from his program in response to his ugly attack on Georgetown University law student, Sandra Fluke.

"So just so you know...what's in The Washington Post...is and out and out lie," Limbaugh pressed. "Alexandra Petri, Washington Post, got the snarky, lying, full-of-holes so-called report today, and I guarantee you she'll run another report saying I made this all up and I'm trying to cover my rear end. But folks, it isn't true."