Colin Jost's mom 'didn't quite understand' naming his son Cosmo

Colin Jost's mother obviously loves her grandson, but it took her some time to understand why his name is Cosmo.

"My family is very supportive, always," Jost, 39, explained on Late Night with Seth Meyers when asked how his family reacted to the unconventional name. "My mom, I would say, was slightly thrown by it and didn't quite understand it. I don't know if she thought it was kind of, like, a hippie thing."

The Saturday Night Live "Weekend Update" anchor continued: "She would call us and say—you know, like, after three or four days, she'd be like, 'Cosmo.' She'd be like, 'And now, is it final? Like, did you submit the birth certificate?' And we're like, 'Oh, yeah, we did that at the hospital.' And she's like, 'Oh, OK, interesting because I was reading that there's also a name Cosimo, with an 'i.' So, that could also be an option.'"

Jost then explained that because his mother lives on Staten Island, she met "various members of the Italian community" who have relatives named Cosmo, which helped her come around to the name.