A disease caught by members of a fandom while they wait for new content to be released. Since hiatuses can be quite long for most series, hiatus flu is usually chronic and severe.
"Marty has spent the last month doing nothing but writing fanfiction about his favorite cartoon. What's happened to him?"
"Don't worry man, he just caught the hiatus flu."
"Don't worry man, he just caught the hiatus flu."
by Rick Rolland June 28, 2016
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