A particular type of douchebag who boldly goes where no other douche has dared to go before... Finding new and irritating ways of being a total tool and douche.
A subsiquent amount of douche (most likely from more than one person) which is piled together in a way that it looks as if it is a cake made of douche. It also is used as a negative way of "dissing" another chum pal or even a way to pick on someone. It is closely related to the words faggot and fag
"Glenn Beck is a massive Douchecaster." "Diane Rehm is a massive Douchecaster." "I don't care if he's funny, I still think Stephen Colbert is a Douchecaster." "Karl Rove seems to have found a new career as Douchecaster."