Having the qualities of a douchebag; often seen in those with an abundance of first names, the socially awkward types, and/or the class know-it-all which everyone despises.
"ZacharyMichealPaul showed extreme douchebagginess when he blurted out the answer in class and then scanned the room to make sure everyone heard him."
Douchbageryness is a word used when explaining someone who has exemplified themselves by pulling numerous douchebagery moves.
A boy who brings a bar girl around a girl he's talking to would be called a douchebag, ergo when describing the event you would refer to his "douchebageryness". He exudes the essensence of a true douche.