depricameo 

the act of consciously participating in a movie as a washed-out actor/actress and acknowledging one's lack of acting career or loss of acting career

Doogie Howser pulled a depricameo when he appeared in Harold and Kumar Goes to White Castle; he consciously made fun of the fact that he's a washed-out actor and appeared as himself in the movie.

depricameo by commgrad April 9, 2005

deprication

Deprivation of appreciation

Deprication of inherent moral value structure is rife.

deprication by Hercolena Oliver April 18, 2010