Adj. A person who is beyond the description of "bitch." The kind of person that would knock you down, take your lollipop, and do your boyfriend, all within 10 minutes, and without feeling remotely bad about it.
Person 1: (PB) Oh, I'm sorry, were you carrying on with your pointless, pathetic life here while I walked down the street not caring? Why don't you give me your lollipop to make it all better?
Person 2: ...
Person 1: *to the boyfriend* My, aren't you a cute one...
Person 2: She is SUCH a powerbitch.
Person 2: ...
Person 1: *to the boyfriend* My, aren't you a cute one...
Person 2: She is SUCH a powerbitch.
by Maggalaggadingdong September 10, 2006
Get the Powerbitchmug.