Add Charlie Sheen and Ashton Kutcher to the long list of Twitter feuds.

The “Two and a Half Men” alum called out Kutcher on Twitter Sunday night, calling him “lame” while praising his former sidekick and co-star Jon Cryer. In subsequent tweets, Sheen continued to insult Kutcher’s work (“quit barfing on my old, brilliant show”) and proceeded to clear up the fact that he didn’t mean to call him lame but rather “REALLY lame.”

This isn’t the first time Sheen has turned to Twitter to air grievances — or seek atonement from previous fights. He also used the social media site to announce his apology to the show’s creator, Chuck Lorre, after a public spat that ultimately led to his dismissal from “Two and a Half Men” during the season-nine premiere.

While the 48-year-old actor still appears to be bitter over his former show, Sheen recently claimed to have made amends with Lorre in November 2013.

As of Monday afternoon, Kutcher had yet to respond to Sheen’s attacks.