Top Definition
A very obese human being (at time of post, we have evidence to believe that this human being is a female) of puerto rican descent who resides, or had resided in the Bronx and is extremely rude and belligerent to the human race.
John: "Excuse me, but do you have a pen I can borrow. My dying father is in the emergency room, and the hospital needs me to fill out an insurance form."

Lorraine: "What do I look like to you? Some kind of shitty-ass ball-point ink producing factory??? Get outta my way, before I sit on you and use you flattened remains as a slug for a coke machine!"

John: "OMG! There's no need to be a Bronxilla!"
by Pincha Uva December 02, 2009
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