When a douchebag translates (in their mind) someone's query as a greenlight to offer their negative opinion on a subject within the query, but not the main subject at hand, offering no help whatsoever.
"Hey everyone, Angie and I are thinking burgers tonight. Any suggestions on the best one or your favs?"
"OMG red meat's so bad for u. It's so fatty and stays in ur large intestines for years!"
"Thank you for the douchelation, but I'm asking what the best burgers in town are, not your opinion on red meat."
1.Person/s that demonstrates all the qualities of being a douche so well, they could in fact be a deity among douches.
2.The lord and messiah of all douches.
The douchebag version of yourself; someone who resembles you, but is a douchebag. (From the slang "DOUCHEbag" + the German "doppelGANGER" meaning someone who resembles someone else.)