Kutcher first blasted Sheen for harassing him on Twitter after the That '70s Showalum replaced him on Men. "Dude, shut the f--- up! Enough already," Kutcher told Kimmel on Wednesday's show. "It's three years later and you're still blowing me up on Twitter. Come on dude, really?"
On Thursday morning, Sheen initially apologized to the actor on Twitter. "Ashton, message received. So sorry. [You] sounded like me! Well done! My bad. I was pissed at other crap & took it out on you. Hope [you are] good."
However, Sheen's tune changed about two hours later. "But news flash. Dood [sic], you ever tell me to shut the f--- up ever again and I'll put you on a hospital good diet for a year. #YaFeelMe Jr?" According to TMZ, Sheen hadn't actually watched Kutcher's interview when he first apologized.
Watch Kutcher's appearance on Kimmel: