Talking to her co-hosts about a conversation she had with Birdie, she said: "I said, 'You know, Bird, I've been doing a bad job with the pronouns', because Birdie said that they would like their pronouns to be they/them, and I haven't been doing it.
"And I said because I have this public persona and I want Birdie to be in control of their own narrative and not have to answer to anybody outside of our friends and family if they don't want to."
Philipps continued: "And then Bird was like, 'I don't give a f***. You can talk about how I'm gay and out; you can talk about my pronouns.
"That would be cool with me. That's great'. So I said, 'OK, I can talk about it on the podcast'."
She added: "So Birdie, my out kid, prefers they/them. I f*** up sometimes, but I'm trying my best at that, too."
Busy Philipps and Michelle Williams arrives at the 84th annual Academy Awards held at the Kodak Theatre in Los Angeles on February 26, 2012.
Taye Diggs, left, and a pregnant Busy Philipps at the nominations announcement for the 19th Annual Screen Actors Awards on December 12, 2012 in West Hollywood, California.
Mena Suvari, Matt Bernson, Busy Philipps, and Caitlyn Fitzgerald attend the launch of the Matt Bernson 2014 Spring Collection at Nordstrom at The Grove in Los Angeles, CA on April 3, 2014. (Photo By Eric Reid/GuestofAGuest/Sipa USA)
Busy Philipps, Michelle Williams at the 22nd Annual Critics' Choice Awards at the Barker Hangar in Santa Monica, CA on December 11, 2016. (Photo by David Edwards) *** Please Use Credit from Credit Field ***
Michelle Williams and Busy Philipps walking the red carpet during the 89th Academy Awards ceremony, presented by the Academy of Motion Picture Arts and Sciences, held at the Dolby Theatre in Hollywood, California on February 26, 2017. (Photo by Anthony Behar) *** Please Use Credit from Credit Field ***
(L-R) Busy Philipps and Michelle Williams at the "I Feel Pretty" Los Angeles Premiere held at the Westwood Village Theater in Westwood, CA on Tuesday, April 17, 2018. (Photo By Sthanlee B. Mirador/Sipa USA)
LOS ANGELES, CALIFORNIA, USA - MAY 13: Actress Busy Philipps arrives at the Los Angeles Special Screening Of Annapurna Pictures' 'Booksmart' held at the Ace Hotel on May 13, 2019 in Los Angeles, California, United States. (Photo by Xavier Collin/Image Press Agency/Sipa USA)
(L-R) Jane Krakowski, Tituss Burgess, Ellie Kemper, Carol Kane and Busy Philipps arrive to the Universal Televisions FYC event of Unbreakable Kimmy Schmidt held at UCB Sunset Theater on May 29, 2019 in Los Angeles, CA. (Photo by Michael Tran/Sipa USA)
UNITED STATES - JUNE 4: Actor Busy Philipps prepares to testify during House Judiciary Subcommittee on Constitution, Civil Rights and Civil Liberties hearing titled "Threats to Reproductive Rights in America," on Tuesday, June 4, 2019. Philipps talked about her decision to have an abortion at age 15. (Photo By Tom Williams/CQ Roll Call)
Busy Philipps embraces Michelle Williams, right, as she goes to accept the award for lead actress in a limited series or movie for her role in "Fosse/Verdon." Xxx Emmys2019 0922183452b Jpg A Ent Usa Ca (Photo by Robert Hanashiro, USA TODAY, USA TODAY NETWORK via Imagn Content Services, LLC/USA Today Network/Sipa USA)
Busy Philipps attends the 2019 Glamour�s �Women of the Year� Awards Gala at Alice Tully Hall, Lincoln Center in New York, NY, November 11, 2019. (Photo by Anthony Behar/Sipa USA)
NEW YORK, NEW YORK - MARCH 10: Poise® brand teams up with Busy Philipps to spark honest conversations about bladder leakage - something 1 in 3 experience - to empower women to open up and find proper solutions on March 10, 2020 in New York City. (Photo by Simon Russell/Getty Images for Poise)
LOS ANGELES, CALIFORNIA - FEBRUARY 01: Busy Philipps speaks during #BlogHer20 Health at Rolling Greens Los Angeles on February 01, 2020 in Los Angeles, California. (Photo by Sarah Morris/Getty Images)
NEW YORK, NEW YORK - NOVEMBER 12: Michaels and Busy Philipps host Holiday Crafternoon on November 12, 2019 in New York City. (Photo by Brian Ach/Getty Images for Michaels)
HOLLYWOOD, CALIFORNIA - NOVEMBER 07: Busy Philipps attends the world premiere of Disney's "Frozen 2" held at Dolby Theatre on November 07, 2019 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
BEVERLY HILLS, CALIFORNIA - SEPTEMBER 25: Busy Philipps and Elizabeth Banks attend the Will Rogers 78th Annual Pioneer Dinner Honoring Elizabeth Banks at The Beverly Hilton Hotel on September 25, 2019 in Beverly Hills, California. (Photo by Alberto E. Rodriguez/Getty Images)
BROOKLYN, NEW YORK - SEPTEMBER 21: Busy Philipps speaks onstage during Bustle's 2019 Rule Breakers Festival at LeFrak Center at Lakeside on September 21, 2019 in Brooklyn, New York. (Photo by Dia Dipasupil/Getty Images for Bustle)