Tunalock

== English == === Alternative forms === tunalock === Etymology === Blend of tuna +‎ Sherlock. === Noun === Tunalock (uncountable) (Sherlock fandom slang) A subgenre of Sherlock fan fiction and fanart portraying Sherlock Holmes as a tuna or tuna-headed reverse mermaid. For more quotations using this term, see Citations:Tunalock.