n wind breaker; poncho. A light waterproof jacket, usually one that zips up into an unfeasibly small self-contained package. The word derives from the French “cagoule” (meaning much the same thing), which in turn comes from the Latin “cuculla,” meaning “hood.” In the U.S. technical theatre industry a “kagoul” is a black hood worn by magicians’ stagehands to render them invisible-ish. I once thought about writing a whole book dedicated to the word “kagoul,” but then decided against it.