Top Definition
A sickly Flu that can kill you with-in 27 days. Many people have it in Canada and Japan. There is no shot too prevent it so there is no hope for doctors when it comes to The Blu Flu.
Katlyn had the Blu Flu for 20 days and on the 21st day of her diagnosis, she passed away.
by Dr. Muntin July 07, 2010
An over-imbibing malaise, usually following a nigh of epic alcohol consumption; a hangover. Generally cured by immediate intake of additional alcoholic beverages.
"Dude, I have a bad case of the blu flu. I need a Bloody Mary, stat."
by ohyesIdid December 04, 2014
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