If you have ever experienced something that feels strangely familiar, as if the exact same thing has happened to you before, then you are experiencing what the French call “déjà vu.” Like most French expressions—“ennui,” which is a fancy term for severe boredom, or “la petite mort,” which describes a feeling that part of you has died—“déjà vu” refers to something that is usually not very pleasant, and it was not pleasant for the Baudelaire orphans to arrive at the lion pit and experience the queasy feeling of déjà vu.