Charlie Sheen must have watched Ashton Kutcher's appearance on 'Jimmy Kimmel Live' this past Wednesday night (Feb 5th).

The 35 year-old is obviously frustrated by the 'Anger Management' actor for his constant tweets of criticism, and therefore vented his anger on the talk-show.

Kutcher, who replaced Sheen after he was fired from 'Two and a Half Men' three years ago, made a funny request of the 48 year-old who has branded Kutcher as a "lame sidekick" in the past.

"Dude, shut the f--k up!" Kutcher exclaimed. "Seriously, like. Enough already. Like it's like three years later and you're still blowing me up on Twitter. Like come on dude, really?"

Mila Kunis' man is most likely referring to Sheen's tweet last month which read, "hey Ashton sorry bro all good. now quit barfing on my old brilliant show. Remember Punk'd? how duz it feel? c harp."

Well Charlie heard what Ashton had to say and now the tiger-blooded Warlock has responded.

At first Sheen seemed to regret his earlier remarks as he apologised to Kutcher via twitter, "Ashton message received," he tweeted. "so sorry u sounded like me! well done! my bad I was pissed at other crap & took it out on you. hope u r good xo."

However, just as we thought Sheen was claiming responsibility of his actions, the 'Platoon' actor addressed Kutcher two hours later, but this time threatening the former model.

"But news flash Dood, you ever tell me to shut the F*** up, EVER again and I'll put you on a hospital food diet for a year. c," he wrote, finishing the post with, "#YaFeelMe Jr?"

What will Ashton have to say next?

Watch Ashton Kutcher's appearance on Jimmy Kimmel below