Scarlett Johansson is sharing more about the unique name she and husband Colin Jost chose for their son.

The Oscar-winning actor spoke with Jenna Bush Hager about the process of naming a baby during her Thursday appearance on “Jenna and Friends.”

The conversation was spurred by podcaster Kylie Kelce recently talking about people who don’t like the “boy names” she and her husband came up with for their four daughters.

“When we named our son Cosmo, I actually didn’t tell anybody. … I didn’t want any of the weird face,” Johansson said of the son she shares with Colin Jost, before mimicking a strained facial expression. “You know when you tell somebody and they go like this, ‘Oh … that’s … that’s different.’”

“Unless you like a name, you probably shouldn’t say anything about it. Nobody asked,” Johansson said. “It does not affect your life at all.”

Johansson said her mom actually really liked the name, and told her that her “third grade crush was Cosmo,” so the moniker “had a great meaning for her.”

“My mother-in-law was, like, a few days after, she goes, ‘Cosimo is a name I can find. That’s a recognizable name,’” the actor added. “And I was like, ‘We’re not going to just insert an ‘I.’ That’s what it is.’”

“Our eldest daughter is named Mila, M-I-L-A, which is, like, a perfectly popular name,” Bush Hager said. “And [after she was born] my mom called and she’s like, ‘Now in Texas, they’re calling her ‘My-la.’”

Bush Hager said her mom, Laura Bush, suggested a different spelling for Mila’s name, which she refused to use.

“You want me to change the spelling of my child’s name, because in Texas, they’re mispronouncing her name as ‘My-la’?” the talk show host shared before adding, “Let’s just let her be.”

Bush Hager and her husband, Henry Hager, have three children together: Margaret (“Mila”), who is 12; Poppy, 10; and Henry (“Hal”), 6.

Johansson shares a daughter, 11-year-old Rose, with her ex-husband, journalist Romain Dauriac.