noun
1.
Alien Death influenza.
2.
a specific variety of influenza, named for its point of dissemination: contracted primarily from aliens attempting abduction of unwilling humans. Generally associated with malaise, runny nose, chest congestion, extreme exhaustion, and generalized homicidal and suicidal tendencies.
Stay away from Susan she has "Alien Death Flu" and may bite your head off and infect you with it.
by pixiegrumble March 19, 2010

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