Proper noun: "(fandom slang) a genre of crossover fanworks blending characters, settings, and plot elements from the Harry Potter series and the television show Sherlock"
2015, Kee Lundqvist, "Stories of Significance: The Process and Practices of Sense-Making in the Sherlock Fan Community", thesis submitted to Uppsala University, page 21:
Sometimes these take the form of crossovers; for instance by putting Sherlock characters in Hogwarts, the magical school created by J. K. Rowling in her Harry Potter book series. This relatively common crossover/AU is called Potterlock, […]
2017, Carolina Lindström, "'The power of characterization': A comparative analysis of the transformative works created by the English-language and Japanese-language fandoms of BBC Sherlock", thesis submitted to Stockholm University, page 31:
Potterlock, a portmanteau of (Harry) Potter and Sherlock.
2019, Alena Pospíšilová, "Metamorphosis of Relationships in Harry Potter Fanfiction", thesis submitted to the University of Pardubice, page 33:
The same naming technique may be applied to crossovers - stories that combine two or more fandoms together - so in this case Potterlock is a combination of Harry Potter and Sherlock Holmes fandom.
Fictional characters star throughout Slash, including Catwoman and Wonder Woman and a wonderful alternate-universe Johnlock/Harry Potter crossover (Potterlock) with Sherlock as a drug-addicted pureblood Slytherin and John a Muggle-born Gryffindor dating Hufflepuff Mary.
With Potterlock being such a popular crossover amongst Harry Potter and Sherlock fans, it’s no surprise that these characters slot so effortlessly into the four Hogwarts Houses.
