During his acceptance speech, Kaluuya said, "My mum and my dad, they had sex. It's amazing that I'm here! So I'm going to celebrate that tonight."
As the audience and viewers at home laughed, cameras cut to Kaluuya's mother and sister sitting in the audience, both of whom had an embarrassed and confused look on their faces.
When asked about the moment backstage after his win, Kaluuya said, "I think it's pretty obvious all of our parents had sex, if you ask me. That just came out my mouth. I know my mom's going to text me some stuff but here we are."
"I'm going to avoid my phone for a bit, mate," the "Get Out" star continued. "I think my mom's not going to be very happy. But she's going to be cool. She's got sense of humor so ... we [get] each other."
Social media loved the moment, too. "Man out here embarrassing his whole family with an Oscar on his hand," tweeted one fan. "Legends only."
"Full House" actor Bob Saget added, "Daniel Kaluuya just inspired the hell out of me. What an actor. And yes, his parents had sex."