Literal translation
as calm as Baptiste
Meaning
as calm and easy-going as can be
Explanation
This comparison signals total serenity, an unshakeable calm in the face of circumstances that would stir up agitation or worry in most people. The expression rests on the first name Batisto, Baptiste, used here as a popular stock figure, a recurring character in Provençal proverbial comparisons, conventionally embodying a proverbial calm and phlegm, with no link to any specific historical or religious figure: it functions as a generic composite name, much like other first names fixed by usage in comparative formulas. The turn of phrase shows how Provençal speech could build, around a simple, common first name, an imaginary character whose single defining trait, unshakeable composure, is enough to provide an immediate and amusing reference point. The register is familiar, used both to praise a calm appreciated in the face of adversity and to mildly reproach a passivity judged excessive in a situation that would warrant more reaction. The formula belongs to a set of fixed-name comparisons, common in popular speech, where the proper name loses its individual weight to become a mere label of character.