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pronounciation: jum-bawb-itch.

- A hugely major bitch whom says things that are accessible to, or in front of, a large group of people that could possible ruin your standing in your social group.
jumbobitch- "did you guys know that Kelly here, thinks that Steve is mentally challenged, and that we tolerate him for the hell of it?"

Kelly- "dude, you're being such a jumbobitch right myow."
by Kerreh January 31, 2009
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