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.
by Flamingrecorders March 11, 2012
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Someone who spends their free time searching up dumb shit on Urban Dictionary. An example of an Urban Bitchionary, is you.
You're an Urban Bitchionary, why'd you search this up?
by RandomRubbishRick November 24, 2022
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