Citations:Tunalock

Noun: "(fandom slang) a subgenre of Sherlock fan fiction and fanart portraying Sherlock Holmes as a tuna or tuna-headed reverse mermaid"

 * 2015, Zach Dundas, The Great Detective: The Amazing Rise and Immortal Life of Sherlock Holmes, page 255:
 * (There is, for example, an enormous genre of fan-made visual art depicting Sherlock Holmes as an anthropomorphic tuna: collectively, Tunalock. It would confuse Sidney Paget, but I find it hilarious and rejoice in its existence.)
 * 2015, Zach Dundas, quoted in Chris La Tray, "Elementary, my dear", Missoula Independent, 6 August - 13 August 2015, page 18:
 * What's the weirdest Holmes-related spin-off thing you've encountered?
 * ZD: That's a tough question. Something from the fan art world. The whole fan fiction/art culture is where things get weird, with lots of stuff with Sherlock and Watson as lovers and things like that. But it's probably Tunalock.
 * 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:
 * This relatively common crossover/AU is called Potterlock, and the practice of naming particular genre [sic] of AU by adding -lock is one unique to the Sherlock fandom on Tumblr, balletlock, Bondlock, tunalock (in which all or some of the characters are, yes, tunas).
 * 2017, Christoper Redmond, About Being a Sherlockian: 60 Essays Celebrating the Sherlock Holmes Community, page 7:
 * If the proponents of Tunalock (Holmes and Watson are fishes) or Farmlock (cows), the fans who post pictures of Martin Freeman on Tumblr and the devotees of crossover fanfic, want to claim the name of Sherlockians, they are welcome to it.
 * 2018, Jennifer Wojton & Lynnette Porter, Sherlock and Digital Fandom: The Meeting of Creativity, Community and Advocacy, page 36:
 * Perhaps the strangest AU is tunalock, with Sherlock as a fish wearing a scarf.