Top Definition
The horrible virus that infected thousands of gamers on the day that Call of Duty Modern Warfare 2 came out, causing it's hosts to stay home 'sick' and play the game in an obsessive vegitative state.
Person 1: Have you seen Tyler?
Person 2: No, he's home sick with Modern Warflu.
Person 1: Lucky stiff.
by Xarcies November 23, 2009

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