The pop siren is believed to have unleashed the word in response to US rapper Katt, who compared her to a cartoon dog, reports the Sun.
“Watchin clifford the big red dog =) somehow im reminded of @Rihanna idk (I don't know) why tho," Katt had posted. In response, Rihanna tweeted on Thursday: “LMAO (Laughing my a*** off), Katt u lil c***."
Meanwhile an angry fan said that the singer should not have used that kind of language.
London, (ANI): Rihanna has reportedly shocked her legions of fans with a foul four-letter rant at fellow celeb on Twitter. The shocking language came just hours after the 22-year-old star had reached the three million mark for followers on the website.