a person who tries to find an explanation for a crime or something mysterious or who shows that they understand something quickly, especially something that is not obvious Oh, well done, Sherlock. Did you figure that out all by yourself? Look, I’m no Sherlock Holmes, but I think I know who wrote that letter. More Like This Expressions from literary sources Alice in Wonderland, Casanova, Cassandra, Don Juan, Dorian Gray, Falstaffian, Frankenstein, Jekyll and Hyde, Lilliputian, Lothario, Orwellian, Pandora’s box, Peter Pan, Pied Piper, Pollyanna, Rip Van Winkle, Ruritanian, Scrooge, Shangri-La, Sherlock, Stepford Wife, Svengali, Tweedledum and Tweedledee, Utopia, Walter MittySee worksheet. From Sherlock Holmes, a very clever detective in stories by Arthur Conan Doyle, published in the late 19th and early 20th centuries.