Snapefic

noun2

1. •
   (slang) A fanfic in which Severus Snape, of the Harry Potter series, is the protagonist.

   • But with non-slash & non-porno, the best Snapefic I've read is "A Father's Sin" by Severitus, […] in which the professor discovers an unlikely student at Hogwarts is his son. — 2003
2. •
   (slang) Such fan fiction collectively.