Celebrity + debutante + retard = celebutard, according to a new book entitled "I Smirt, You Stooze, They Krump". A 3 word blend, whatever next?
This article on the BBC website talks about a few other words featured in the book and is worth a quick look, along with this Guardian article but I'd save £7.99 and not buy the book if I were you. Instead have a look at this free resource from MacMillan Dictionaries, which gives a linguistic breakdown of a new word each week and offers a whole load of background to why new words appear and how they're formed.
ENA5 - Language Change