Googlefight official Man flu is the strongest flu there is
http://www.googlefight.com/index.php?lang=en_GB&word1=MAN+FLU&word2=swine+FLU
http://www.googlefight.com/index.php?lang=en_GB&word1=MAN+FLU&word2=FLU
So the next time your wife/girlfiend tells you its only man flu, stop moaning about it, refer her to google fight and prove your case.