Citations:Vamplock

Noun: "(fandom slang) a subgenre of Sherlock fan fiction and fanart in which Sherlock and/or John are portrayed as a vampire"

 * 2017, Kristina Busse, Framing Fan Fiction: Literary and Social Practices in Fan Fiction Communities, page 112:
 * Sometimes the thematically focused groups are a clear subset of shippers, such as teenlock, femlock, vamplock, or fawnlock (respectively describing John Watson/Sherlock Holmes as teens, women, vampires, or young deer).