Barack Obama is opening up about what he learned while living with his daughter Malia and her boyfriend in lockdown.

The revelation came during the Dec. 17 episode of "The Bill Simmons Podcast." While chatting with the host, the former president revealed that Malia's beau quarantined with the family during the beginning of the COVID-19 pandemic.

"He's British. Wonderful young man," Obama, 59, explained. "He was sort of stuck because there was a whole visa thing and he had a job set up, so we took him in."

The "A Promised Land" author said he initially "didn't want to like" the guy but admitted Malia has picked a "good kid."

Obama also noticed something else about his daughter's boyfriend.

"The only thing you discover… [is] young men eat," he said.

"It's weird to watch them consume food," he continued. "My grocery bill went up about 30%."

Malia, 22, has been linked to fellow Harvard student Rory Farquharson since 2017.