celebretard

Etymology
. Celebrity blogger Perez Hilton is credited with coining the term.

Noun

 * 1)  A celebrity regarded as foolish or stupid, especially one noted for episodes of unrestrained, self-destructive behavior.
 * 2) * 2009, Zoey Dean, Hollywood Is Like High School with Money [novel], Grand Central Publishing (2009), ISBN 9780446697194, page 147:
 * Hollywood celebretards Rumer Willis, Vanessa Hudgens, Hania Barton, and Quinn's boy toy, actor/DJ Blake Miller, joined Quinn in sucking down the SoCo and stripping down in the hot tub.