Actor Charlie Sheen has regurgitated an old feud with Rihanna, calling her a b*tch during an appearance on ‘Watch What Happens Live’ Wednesday.

Sheen, asked about a long time public altercation with Rihanna, showed that he had not  exactly forgotten what happened on that day.

Asked about what he thought of the Te Amo singer, Sheen replied: “Oh, that b*tch,”

Sheen’s animosity stemmed from an incident at a restaurant years ago, when his then partner Brett Rossi wanted to meet the singer and she turned down the request.

“…She abandoned common courtesy and common sense,” he continued in reference to the incident.

The actor, who recently revealed an HIV/AIDS diagosis, also reserved some choice words for his former co-star Jennifer Grey.