Kieran Culkin’s expletive-ridden remarks during his Oscars acceptance speech can be disclosed for the first time.

RadarOnline.com can reveal raw footage of the 31-year-old star – which saw many of the words bleeped out – has surfaced online.

Culkin won Best Supporting Actor for the comedy-drama A Real Pain, beating his old Succession co-star Jeremy Strong, who was up for his role as Roy Cohn in the Donald Trump biopic The Apprentice.

At the beginning of his speech, Culkin paid a sweet tribute to Strong — only for part of his remarks to be muted because of profanity.

Now, however, a video has surfaced on social media that shows the full comment Culkin made on Strong’s acclaimed performance.

Robert Downey Jr, who presented the award, had praised Strong’s turn as Cohn, and Culkin agreed, saying: “He’s right, by the way, Jeremy, you’re amazing in The Apprentice. I love your work. It’s f****** great.”

Culkin then realized he had made a mistake by swearing on camera, and quickly covered his mouth in an apologetic gesture.

“I’m not supposed to single anyone out. It’s favoritism. Anyway, but you were great,” he added to Strong, who played his character Roman’s brother on Succession.

During his Oscars speech, Culkin also reminded his wife of the wholesome promise she made to him years ago if he ever won the coveted Oscar trophy.

The actor said Jazz Charton agreed to give him a fourth child if he ever won an Academy Award.

Speaking onstage while holding his Oscar statuette, Culkin said: “Turns out she said that because she didn’t think I was gonna win.

“She goes, ‘Oh god, I did say that? I guess I owe you a third kid.’ And I turned to her and I said, ‘Really, I want four.'”