C-list celebrities have difficult understand that they are really not that famous. This leads to amusing incidents where a c-list, on being told that they can't order the Pizza Hut buffet after 5pm will become angry and ask "Do you know who I am"?
A c-list doesn't need any kind of skills other than being a shameless self-publicist. Jade Goody is a good example. Although she quickly developed a reputation for being utterly thick during her stint on Big Brother, this did not stop her from carving out a career as a c-list.
Ultimately pointless. The modern day equivalent of the Roman idea of giving the people bread and circuses.
Sarah: She's a c-list celebrity, she'll do anything to make sure her face is in the magazines, even if that means exploiting a child.
June: What exactly does Jordan do?
Sarah: No-one knows but she must be good at something. No-one can be this famous yet appear to have no useful abilities?
Anyone on the Disney Channel is a C-List Celebrity.