Any combination of airborne or suface-borne illnesses, contracted by the sharing of handheld electronic devices, D&D dice, cards or videogame controllers between various geeks of questionable hygiene. (Also See 'Geek Crud')
by Lexicon Grrl September 28, 2010
Absence from school/work the day after an all nighter/ midnight showing of a blockbuster film (usually based on a grapic novel such as Watchmen).
"I came down with a bad case of Nerd Flu after the midnight showing of X-Men Origins: Wolverine on Thursday."
by Sourr Elizabeth May 1, 2009