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A term used when a talkative person corners some poor, unwitting soul who is just minding their business, and then subjects them to endless hours of incessant chatter about nothing that the unwitting soul is remotely interested in.
I went up to the bar to grab a drink, and before I could get away, Justin came up and bibwhacked me. I had to stand there for 30 minutes listening to him talk about his irritable bowel syndrome!
by AjaLee December 12, 2008
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