sickfic noun2 •(slang) A fanfic which focuses on a character dealing with illness.A long time ago, in a galaxy far, far away, I wrote a sickfic. — 1999 •(slang) Fanfiction which intentionally deals with disturbing situations and themes.Probably so he can post some truly disgusting darkfic/deathfic/sickfic/hatefic, like Soun doing ungodly things to his children as an explanation for their behaviour...or at least Kasumi. — 1997 formssickfics