WATCH: Ashton Kutcher’s Daughter Learned a Four-Letter Word that Rhymes with ‘Truck’

Ashton Kutcher’s daughter Wyatt added a handy word to her vocabulary thanks to Kutcher’s side commentary.

Kutcher discussed the latest developments in his experience as a first-time father on Late Night with Seth Meyers on Thursday (Oct. 6, 2016). The actor told Meyers that his wife Mila Kunis is teaching their two-year-old daughter how to speak her family’s native tongue of Russian.

“She can speak and understand English. She can speak and understand Spanish,” boasted Kutcher. “She can understand Russian, but she can’t really speak it yet.”

Given that Kunis’s grandparents “basically only speak Russian,” Kutcher took Russian lessons for six months in an attempt to understand what they were saying.

“Russian is a very aggressive language. It doesn’t matter what you say, it sounds like you’re yelling,” said Kutcher. “Everything sounds really aggressive. I thought that they really didn’t like me … and it turns out they were just like, ‘We love you so much!’ Now I got it. Now I know. They love me!”

Though he deems Russian as a rough language, Kutcher let a choice word in English slip in front of his daughter when their dog Ricky had an accident and regretted it entirely.

“I’m getting ready in the morning and Mila’s like, ‘Oh, Ricky peed in the stairwell.’ I’m like, ‘F**k, Ricky!'” Ashton told Meyers. “I’m walking and my daughter’s right behind me, and all of a sudden I just hear, ‘F**k, Ricky!’ I’m like, ‘No, no, no! Papa didn’t say that. Papa said fox! Papa said fox! Ricky’s like a wily fox.”

Wyatt went on to repeat the same phrase when Ricky later chewed a hole in their carpet. Add this snafu to the list of Kutcher’s qualifications for an “embarrassing dad” title along with ripping his pants on live TV and accidentally revealing the sex of his second child.

Kutcher later aired out his grievances with his former co-star Laura Prepon on Live! with Kelly on Friday (Oct. 7, 2016). Kutcher was upset that he had to find out about Prepon’s engagement to his friend, Ben Foster, with the general public.

“I’m very upset with her right now. [Prepon] just announced this engagement, and I had to find out in the news! She’s my friend. It’s weird like that,” Kutcher told Kelly Ripa. “By the way, it’s not just a random engagement. It’s an engagement to another friend of mine! So, now I’m double upset that neither of them told me.”

Kutcher said that Prepon was equally surprised when she found out that he and Kunis were engaged.

“[Prepon] was like, ‘What? This is crazy! You guys, it was like 20 years ago. You were friends and no one saw this coming, and now you’re engaged and I have to find out this way,'” Kutcher recalled.

Watch Kutcher and Ripa’s interview with Prepon in the video below and watch his appearance on Late Night at the top of the page.