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The former "Girls" star also talks about why Christopher Abbott really left the series and says she wishes she'd bit Beyonce.

Lena Dunham dropped by Andy Cohen's "Watch What Happens Live" clubhouse Wednesday night where she owned a round of "Plead the Fifth" like a champ.

The former "Girls" star was proud of herself when she'd realized she didn't shy away from any of Cohen's questions, suggesting she'd basically won an award by doing so. She talked candidly about who she feels is Hollywood's biggest misogynist, broke down why co-star Christopher Abbott really left "Girls" after two seasons, and plenty more.

In fact, she didn't limit her candid responses to just the "Plead the Fifth" segment, spilling the tea on the brief rumor that she might have been the one who bit Beyonce, and her thoughts on long-time friend Taylor Swift finally talking openly about politics, endorsing Democratic candidates and urging people to vote.

The toughest question for her, though, was the biggest misogynist in Hollywood. "This is such a tough one because there's so many," she said, while thinking about it. "I'm trying to think honestly of someone who's said something hideous about my body, so I can just direct it super clearly."

Dunham came under immediate scrutiny and suffered incredibly cruel comments and attacks after she appeared nude on her HBO series "Girls." Virtually every aspect of her body was put under a microscope and derided for not fitting typical standards of Western beauty, so she definitely knows a thing or two about misogyny.

Finally, she figured out who she would give this label, too, and it seemed to even surprise her a bit. "This isn't a person who has like a ton of power, but the small amount he has I feel he has used for ill and that's Daniel Tosh," Dunham said. "He said a really unkind thing about my breasts. But he said it in a context in which I felt like he was shutting down a lot of women for having bodies he didn't consider to be normative."

She admitted that "it's sort of like he's a dumb one to mention because he can't do anything," but Tosh does have his loyal fans. His Comedy Central series, "Tosh.0," has been on the air for ten seasons now, was sold into syndication a few years ago and has millions of viewers.

But to Dunham's point, fellow guest Maggie Gyllenhaal said of Tosh, "I don't actually even know who he is."

She also spoke candidly about why former "Girls" star Christopher Abbott left the series after the second season. At the time, he claimed it was because he could not connect to his character. "I would say our difference was that I was amazing at my job and he couldn't handle it," Dunham told Cohen.

"He just didn't want to do it anymore. He wigged out," she continued. "I'm sure he had plenty of great reasons, but I do remember he said something about being stuck on a sitcom and I didn't love that." She said the two have since reconciled and become good friends.

For her last question, Dunham was asked by her "Girls" costar Andrew Rannells to name her least favorite one of Taylor Swift's boyfriends -- while sitting next to the sister of one of them, Jake Gyllenhaal.

"My least favorite of Taylor's boyfriends, and I want to do right by her with this question, my least favorite was 'Calvin Harris' because I felt that he was petty in the public and who needs to do that?" she answered.

Later in the show, Cohen also asked Dunham what she thought of Swift coming out politically after all those years of silence.

"That was really amazing," she said. "She felt it was time for her to talk about politics and I never judged her for considering that a private domain. But I think she chose a really powerful time to speak out and I'm so moved and honored to be her friend."

Something that might seem a little less exciting to most of us was actually pretty thrilling for Dunham. When asked what she thought of being thrown in the mix of possible suspects to have bitten Beyonce, Dunham said, "I wish I bit Beyonce."

She went on to confess, "I'm the least likely person to bite Beyonce. I'm incredibly conflict averse, I don't drink, I never leave my house. She'd have to come into my house while I was sleeping for me to bite her."

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