Someone famous for being famous (or infamous), particularly in the entertainment industry. A meta-celebrity is a well known celebrity, who has not done anything particularly noteworthy to justify their Fame. The late Anna Nicole Smith and Paris Hilton are two contemporary examples. Meta-celebrities do not always orginate in the entertainment industry, but they nearly always gravitate to it, often as a last ditch effort to extend their "fifteen minutes" as their profile starts to wane.
See also Professional Celebrity, Famious for being famous.
The late Anna Nicole Smith was a classic meta-celebrity