1 definition by Priscilla2011

Top Definition
A term for bitter-sweet news, or a good-news-bad-news sandwich. The good news is a 'Yay', the bad news is a 'Boo'.
I won $100 dollars on the lottery yesterday, but then my car broke down and cost me $150 dollars to fix. What a Yayboo.
by Priscilla2011 April 14, 2011

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