A scrabble player that cheats by using a dictionary or word guide to search for words to fit the tiles while an on-line game is in progress.
Linda: Once again Betsy beat me playing Words With Friends on the iPhone. I think she cheated.
Mary: Why do you think that?
Linda: She got the word OXAZEPAM.
Mary: I didn't even know that was a word.
Linda: Yeah, will now I know she's a total bitchionary.
n. - a girl who passive-aggressively submits something on Urban Dictionary that talks shit about someone in hopes they will somehow see it and understand
Girl: Look at my new Urban Dictionary post! "Yearbook editor: A stupid floozy slut who punches babies and eats Bibles for breakfast and steals boyfriends because she's a stupid bitch and has a mole on her nipple."
Boy: Hey now, don't be such an Urban Bitchionary. The yearbook editor is really sweet, and you're just mad she put that picture of you pooping in a cup in the yearbook.