One who is more than just a douche, to a point where they're no longer able to be categorized as a douche; they're a douchevat. They are known for having douche-like characteristics; they lie, use people, and are severely awkward.
Jada: I can't believe the nerve of Justin! He just lied to me again, after I already heard the truth about what he did!
Skye: Don't sweat it; Justin's simply a douchevat.
Skye: Don't sweat it; Justin's simply a douchevat.
by The blondie September 16, 2012
One who is too much of a douche to just be a douchebag. This charachter in life is a whole vat of douche. Like at the factory.
by the hangar September 3, 2008