Top definition
A gross, stupid, or careless mistake, usually spoken aloud but occasionally whispered over an open microphone. The individual who makes a Bidenblunder is unaware of his or her profound ignorance and will often grin broadly after such utterance, much like some people do after they let a big fart.
She was speaking in front of a large audience and was totally embarrassed by her Bidenblunder.
by arasina March 22, 2012
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