A douchebag of high douchebaggery in the feudal world that often kidnaps a princess(of his own kingdom) instead of saving one. In the modern age though, a sir douchebag just has extremely douchebaggy-like qualities, but higher than that of a regular douchebag and lower than that of prince douchebag.
Douchebag: Okay, I beat up those first graders and took their lunch money so that way I could afford enough money to buy an Xbox One and show off my wealth with it even though the PS4 runs more powerful at a lower price.
If there was a Land of Douche, King Douche would dub his number onedoucher "Sir Douchealot". A complete, utter, and absolute ass hat, fuck ass, and fagol. A doucheopotamus.
"Bro, out of all the people at that bar, Larry should definitely be dubbed Sir Douchealot."
"After he showed her his pokemon cards, she spilled her drink on him and said ' You are Sir Douchealot, the prince of douchebaggery' and left."
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi