Definitions by Jon Adams

Man Flu 

1)A slight sniffle or cold that is turned into a dreadful condition by the imagination of the male sufferer

2)A Man's Flu (flu = Long chimney structure for fireplaces) is used to describe a mans penis.

"Isn't Quint really ill?", "Nah, he just has man flu!"
"Homosexuals like Man Flu"

Man Flu by Jon Adams September 27, 2006