The combinations of Dirty + Doucher
DIRTY - when someone for no reason does you dirty or (wrong)
DOUCHER someone who is an (asshole, Douche Bag, Dip Shit, numb nutts, team killer) usually a male with a very small penis and a complete lack of common sense or decency.

a complete douche bag who's girlfriend is way too good for them

noun: someone who acts like they are the shit, and/or have practiced douche bag qualities on other people. Most likely a frat boy.

that person who sits on urbandictionary.com waiting for the next celebrity to die or make up words that no one will ever know in hopes they'll land word of the day

Someone who struts around like they are God's gift to women, mistakenly thinks they're witty and charming, and has a complex. Probable that he has both his ears pierced. Could be from Pittsburgh.

The act of being a douche; to be a complete jackass; To practice in the act of douchebagger

Noun: Someone or something that is a Douche-Bag. May or may not also be an asshole, prick, or dick.