dead man’s switch
n.— «This pyrotechnic crew won’t be sitting around, though, until the “dead man’s switch,” as it is called, is clicked to start the show. Until then, they’re moving boxes, cutting tape and sorting through thousands of fireworks.» —“Behind-the-Scenes with Pyrotechnics” by Britney Glaser KPLC-TV (Lake Charles, Lousiana) July 4, 2007. (source: Double-Tongued Dictionary)
Further reading
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Quiz Guy John Chaneski has a magical puzzle, the answers to which contain the word magic. For example, a motel sign in the ’70s might have included the enticement Magic Fingers, and Gabriel Garcia Marquez was a practitioner of literature featuring...