A GOP strategist is suing Donald Trump and his campaign manager Corey Lewandowski for falsely portraying her as a desperate job seeker who trashed the Republican presidential candidate in the media after she wasn’t hired for a communications director post, according to her $4 million defamation lawsuit.

The billionaire businessman’s tweets, calling strategist Cheri Jacobus “a real dummy” and a “major loser,” incited a “virtual mob against her,” with Trump’s Twitter followers calling the political operative “a whore” and posting graphic photo illustrations of her naked and being raped from behind, the suit says.

And the vitriol flowed from untrue claims that Jacobus, 56, wasn’t hired for a gig with the Trump campaign, according to court papers.

Jacobus’ suit includes Facebook messages from former Trump rep Jim Dornan recruiting her for the PR post in May 2015.

She met with Dornan and Lewandowski at the Trump Tower in New York last year, but turned down the job because of “boorish behavior by Lewandowski,” her Manhattan civil suit says.

Specifically, Lewandowski allegedly bragged about yelling at Fox News’ Megyn Kelly, who just months later would become a public target of the brash businessman.

Jacobus says in court papers that she never even formally applied for the job, and certainly didn’t hold a grudge against the campaign when she didn’t get it.

As the presidential race heated up last summer, Jacobus went on TV to both criticize and praise Trump. She says she defended the candidate on CNN when he was called a “racist” and dinged him on Twitter for insulting John McCain’s military record.

The campaign retaliated by making public, defamatory statements accusing Jacobus of pleading for position, the seven-figure defamation suit says.

First, in January, Lewandowsi went on MSNBC and said that the former RNC spokeswoman “came to the office on multiple occasions trying to get a job from the Trump campaign, and when she wasn’t hired, clearly she went off and was upset by that.”

Then in February, Trump tweeted, “@cherijacobus begged us for a job. We said no and she went hostile. A real dummy!”

Trump also called Jacobus “major loser, zero credibility,” in a second tweet.

The tweets, to Trump’s more than 6 million followers, unleashed “an avalanche of vicious ridicule and scorn,” the suit says. She was called a “whore,” “b—h” and “nutcase,” the suit says.

And then came the photographs “with gruesomely altered features.”

The “numerous graphic illustrations as an appropriate victim for rape and sexual assault” included “images of Jacobus bent over naked being raped from behind,” according to court papers.

“These statements incited a virtual campaign of abuse and harassment against Jacobus, causing enormous damage to her career and reputation, significant emotional distress and holding her up to public ridicule,” the suit says.

The New York resident lost bookings and requests for media appearances dried up, her suit says.

A spokesman for Trump did not immediately comment.