Speaking to Vanity Fair, Lane reflected on the female characters in the show and her own character's interactions with Robin Wright's Claire Underwood.
"But we don't [pass] the rectal test, right?" she said. "Am I saying it right?"
The interviewer was quick to correct her with, "You mean Bechdel?" — and thankfully it turned out that Lane was, in fact, referring to the test that determines whether a work of fiction features at least two female characters who speak to each other about something other than men.
"Yes, that's it," Lane corrected herself. "When the Bechdel test was first mentioned, I thought, yeah, what's up with that? Why are guys always able to talk about whatever is going on in the story and then the ladies are coming on talking about the guys? I mean, it's just dumb… We are playing history back now, looking at things differently."
Unfortunately, Twitter isn't letting her get away with the word slip quite so easily.
See some of the best reactions to the "rectal test" below.
House of Cards returns for its sixth and final season on November 2.
the rectal test is when two butts talk to each other on screen https://t.co/5YsrLTaTAK— Estelle Tang (@waouwwaouw) October 29, 2018
sorry to inform diane lane that the only film that passes the Rectal Test is ME AND YOU AND EVERYONE WE KNOW https://t.co/KiuMIB5Wml— Inkoo Kang (@inkookang) October 29, 2018
Rectal test and Bechdel test are what are known as approximate rhymes. https://t.co/jKy6QJUKsU— Dictionary.com (@Dictionarycom) October 29, 2018
the opening verse of 'baby got back' passes the rectal test https://t.co/1w6gYb62lm— Alex Zalben (@azalben) October 29, 2018
The best thing I learned today is that Diane Lane thinks the Bechdel Test is called the Rectal Test. I love her. https://t.co/gIW8Mf59Jg— alanna, because being yourself is scary enough (@AlannaBennett) October 29, 2018
Do women in a film or tv show spend more time talking about the assholes in their lives than their own hopes, dreams, and ambitions!?— Jane Solomoonmoon (@janesolomon) October 29, 2018
Congratulations! You've passed the rectal test! 🍑
Dumb and Dumber passing the Rectal Test. https://t.co/n7w3L05FZm— rick wasn't allowed to celebrate Halloween (@rickburin) October 29, 2018