A bad or heavy cold that males interpret as being the flu. The real flu would knock them off their feet.
by xD January 18, 2004
An affliction that affects both sexes but is most common among men. It is not unlike severe hypochondriasis in manner but is often only isolated to colds and flus that do not require medical attention. This affliction causes a person to become weak, lethargic, codependent, fatigued, and pathetic. They will often claim ridiculous things and need constant attention until symptoms of sickness subside.
Person 1: "I'm dying..."
Person 2: "You're not dying."
Person 1: "YOU DON'T UNDERSTAND!"
Person 2: "You just have manflu."
Person 2: "You're not dying."
Person 1: "YOU DON'T UNDERSTAND!"
Person 2: "You just have manflu."
by Akimika May 30, 2013