Bagnificent
-adj: possessing the characteristics or mannerisms of, resembling or displaying behavior befitting a douche bag; douche-like.

synonyms: baggadocious, bagnostic, baggadelic, bagnetic, bagtastic, bagnifique.

related nouns: bagster, baggamuffin, Bagnum P.I., bag boy, deuce bag, sacco di douche, bagnificence, Baggie Smalls, Notorious B.A.G.
Some dillwad cut me off on the highway today and then gave me the finger. I should’ve known he was bagnificent by the ‘My Child is a Star Student’ bumper sticker on the back of his Hummer.