and old school way of politely saying bullshit. An outright lie or utterly nonsensical opinion.
"He said it means you've had sex with someone who's underage? BOLDERDASH!"

" Most of the definitions here are bolderdash."
by Liquidshadows71 December 12, 2018
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The term you use when you have just had the best, unexpected sex, and later find out the youngin is underage..
Did you hear, Pete scored with Courtney and later found out she was jail bait.. whoa bolderdash!

Joan, gave it up for Sam, but joan is Bolderdash
by chris50M January 13, 2006
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